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Import testsuite
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@32225 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald
parent
03bc4d79d6
commit
251b1edd94
23 changed files with 1991 additions and 0 deletions
169
Tests/gui/NSBezierPath/bounds.m
Normal file
169
Tests/gui/NSBezierPath/bounds.m
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@ -0,0 +1,169 @@
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/*
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copyright 2004 Alexander Malmberg <alexander@malmberg.org>
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*/
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#include "Testing.h"
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#include <Foundation/NSAutoreleasePool.h>
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#include <AppKit/NSBezierPath.h>
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#include <math.h>
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int main(int argc, char **argv)
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{
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CREATE_AUTORELEASE_POOL(arp);
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NSBezierPath *p=[[NSBezierPath alloc] init];
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NSRect r;
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pass(NSIsEmptyRect([p bounds]),"empty path gives empty bounds");
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[p moveToPoint: NSMakePoint(100,100)];
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[p lineToPoint: NSMakePoint(150,150)];
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pass(NSEqualRects([p bounds],NSMakeRect(100,100,50,50)),"bounds accuracy (1)");
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pass(NSEqualRects([p controlPointBounds],NSMakeRect(100,100,50,50)),"control-point bounds accuracy (1)");
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[p removeAllPoints];
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pass(NSIsEmptyRect([p bounds]),"empty path gives empty bounds (2)");
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[p moveToPoint: NSMakePoint(100,100)];
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[p curveToPoint: NSMakePoint(200,100)
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controlPoint1: NSMakePoint(125,50)
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controlPoint2: NSMakePoint(175,150)];
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/* Basic checking Y. */
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r=[p bounds];
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if (fabs(r.origin.x - 100.0000) > 0.001 ||
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fabs(r.origin.y - 85.5662) > 0.001 ||
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fabs(r.size.width - 100.0000) > 0.001 ||
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fabs(r.size.height - 28.8678) > 0.001)
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{
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pass(0,"bounds accuracy (2)");
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printf("expected %s, got %s\n",
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[NSStringFromRect(NSMakeRect(100.0000, 85.5662, 100.0000, 28.8678)) lossyCString],
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[NSStringFromRect(r) lossyCString]);
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}
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else
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pass(1,"bounds accuracy (2)");
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pass(NSEqualRects([p controlPointBounds],NSMakeRect(100,50,100,100)),"control-point bounds accuracy (2)");
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/* Basic checking X. */
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[p removeAllPoints];
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[p moveToPoint: NSMakePoint(100,100)];
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[p curveToPoint: NSMakePoint(100,200)
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controlPoint1: NSMakePoint(50,125)
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controlPoint2: NSMakePoint(150,175)];
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r=[p bounds];
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if (fabs(r.origin.y - 100.0000) > 0.001 ||
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fabs(r.origin.x - 85.5662) > 0.001 ||
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fabs(r.size.height - 100.0000) > 0.001 ||
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fabs(r.size.width - 28.8678) > 0.001)
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{
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pass(0,"bounds accuracy (3)");
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printf("expected %s, got %s\n",
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[NSStringFromRect(NSMakeRect(85.5662, 100.0000, 28.8678, 100.0000)) lossyCString],
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[NSStringFromRect(r) lossyCString]);
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}
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else
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pass(1,"bounds accuracy (3)");
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/* A bit of both, and extreme values beyond the initial points. */
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[p removeAllPoints];
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[p moveToPoint: NSMakePoint(-100,0)];
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[p curveToPoint: NSMakePoint(100,0)
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controlPoint1: NSMakePoint(-118.2, 10.393)
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controlPoint2: NSMakePoint( 118.2,-10.393)];
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r=[p bounds];
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if (fabs(r.origin.x + 101.0) > 0.001 ||
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fabs(r.origin.y + 3.0) > 0.001 ||
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fabs(r.size.width - 202.0) > 0.001 ||
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fabs(r.size.height - 6.0) > 0.001)
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{
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pass(0,"bounds accuracy (4)");
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printf("expected %s, got %s\n",
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[NSStringFromRect(NSMakeRect(-101.0, -3.0, 202.0, 6.0)) lossyCString],
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[NSStringFromRect(r) lossyCString]);
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}
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else
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pass(1,"bounds accuracy (4)");
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/* Check the control-point bounding box. */
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r=[p controlPointBounds];
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if (fabs(r.origin.x + 118.2 ) > 0.001 ||
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fabs(r.origin.y + 10.393) > 0.001 ||
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fabs(r.size.width - 236.4 ) > 0.001 ||
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fabs(r.size.height - 20.786) > 0.001)
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{
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pass(0,"control-point bounds accuracy (3)");
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printf("expected %s, got %s\n",
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[NSStringFromRect(NSMakeRect(-118.2, -10.393, 236.4, 20.786)) lossyCString],
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[NSStringFromRect(r) lossyCString]);
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}
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else
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pass(1,"control-point bounds accuracy (3)");
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/*
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p=(1-t)^3*a + 3*(1-t)^2*t*b + 3*(1-t)*t^2*c + t^3*d
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c-2b+a +- sqrt(a(d-c)+b(-d-c)+c^2+b^2)
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t= --------------------------------------
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-d+3c-3b+a
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*/
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if (0)
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{
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NSPoint a,b,c,d;
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double t1,t2;
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double t,ti;
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NSPoint p;
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a=NSMakePoint(-100,0);
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b=NSMakePoint(-118.2,10.39);
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c=NSMakePoint(118.2,-10.39);
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d=NSMakePoint(100,0);
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#define D \
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ti=1.0-t; \
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p.x=ti*ti*ti*a.x + 3*ti*ti*t*b.x + 3*ti*t*t*c.x + t*t*t*d.x; \
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p.y=ti*ti*ti*a.y + 3*ti*ti*t*b.y + 3*ti*t*t*c.y + t*t*t*d.y; \
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printf(" t=%15.7f (%15.7f %15.7f)\n",t,p.x,p.y);
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t=0; D
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t=1; D
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t=0.5; D
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t1=(c.x-2*b.x+a.x + sqrt(a.x*(d.x-c.x)+b.x*(-d.x-c.x)+c.x*c.x+b.x*b.x)) / (-d.x+3*c.x-3*b.x+a.x);
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t2=(c.x-2*b.x+a.x - sqrt(a.x*(d.x-c.x)+b.x*(-d.x-c.x)+c.x*c.x+b.x*b.x)) / (-d.x+3*c.x-3*b.x+a.x);
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printf("x:\n");
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t=t1;
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D
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t=t2;
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D
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t1=(c.y-2*b.y+a.y + sqrt(a.y*(d.y-c.y)+b.y*(-d.y-c.y)+c.y*c.y+b.y*b.y)) / (-d.y+3*c.y-3*b.y+a.y);
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t2=(c.y-2*b.y+a.y - sqrt(a.y*(d.y-c.y)+b.y*(-d.y-c.y)+c.y*c.y+b.y*b.y)) / (-d.y+3*c.y-3*b.y+a.y);
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printf("y:\n");
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t=t1;
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D
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t=t2;
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D
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}
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// printf("bounds=%@\n",NSStringFromRect([p bounds]));
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DESTROY(arp);
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return 0;
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}
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709
Tests/gui/NSBezierPath/windingCountAtPoint.m
Normal file
709
Tests/gui/NSBezierPath/windingCountAtPoint.m
Normal file
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@ -0,0 +1,709 @@
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/*
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copyright 2004 Alexander Malmberg <alexander@malmberg.org>
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*/
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#include "Testing.h"
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#include <Foundation/NSAutoreleasePool.h>
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#include <AppKit/NSBezierPath.h>
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#include <math.h>
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#define nextafterf(x,y) next(x,y)
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static float next(float x,float y)
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{
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if (y<x)
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return x-(x?0.00001:0.000005);
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// return x-(x?0.0001:0.00001);
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else if (y>x)
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return x+(x?0.00001:0.000005);
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// return x+(x?0.0001:0.00001);
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else
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return y;
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}
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//#define DRAW
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#ifdef DRAW
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#include <AppKit/NSApplication.h>
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#include <AppKit/NSGraphics.h>
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#include <AppKit/NSView.h>
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#include <AppKit/NSWindow.h>
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#include <AppKit/PSOperators.h>
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@interface MyView : NSView
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-(void) clear;
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-(void) drawPath: (NSBezierPath *)p;
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-(void) drawPoint: (NSPoint)p count: (int)c;
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-(void) pause;
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@end
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#define MOVE \
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{ \
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double x0,y0,x1,y1; \
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double w=800,h=800; \
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\
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x0=76.980; \
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x1=76.981; \
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y0=-0.0005; \
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y1=0.0005; \
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\
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ww=w/(x1-x0); \
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hh=h/(y1-y0); \
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PSscale(ww,hh); \
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PStranslate(-x0,-y0); \
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}
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@implementation MyView
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-(void) clear
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{
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[self lockFocus];
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PSsetrgbcolor(1,1,1);
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NSRectFill([self bounds]);
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[self unlockFocus];
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[[self window] flushWindow];
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}
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-(void) drawPath: (NSBezierPath *)p
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{
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double ww,hh;
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[self lockFocus];
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MOVE
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PSsetrgbcolor(0.8,0.4,0.4);
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[p fill];
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PSsetrgbcolor(0.3,1.0,0.3);
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PSsetalpha(0.5);
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[[p bezierPathByFlatteningPath] fill];
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[self unlockFocus];
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[[self window] flushWindow];
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}
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-(void) drawPoint: (NSPoint)p count: (int)c
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{
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#define NC 3
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static float colors[NC][3]={
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{1,0,0},
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{0,1,0},
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{0,0,1},
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};
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double ww,hh;
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c%=NC;
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if (c<0)
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c+=NC;
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[self lockFocus];
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MOVE
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PSsetrgbcolor(colors[c][0],colors[c][1],colors[c][2]);
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PSrectfill(p.x-4/ww,p.y-4/hh,8/ww,8/hh);
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[self unlockFocus];
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[[self window] flushWindow];
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#undef NC
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}
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-(void) pause
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{
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char buf[128];
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gets(buf);
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}
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@end
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MyView *view;
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#endif
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int main(int argc, char **argv)
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{
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CREATE_AUTORELEASE_POOL(arp);
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NSBezierPath *p=[[NSBezierPath alloc] init];
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NSRect r;
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float x;
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int i;
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const char *str;
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int X=-1000;
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#ifdef DRAW
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{
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NSWindow *w;
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[NSApplication sharedApplication];
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w=[[NSWindow alloc] initWithContentRect: NSMakeRect(50,50,800,800)
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styleMask: NSTitledWindowMask
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backing: NSBackingStoreRetained
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defer: YES];
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view=[[MyView alloc] init];
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[w setContentView: view];
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[w orderFront: nil];
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}
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#endif
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#ifdef DRAW
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#define DP(e,x,y) [view drawPoint: NSMakePoint(x,y) count: e];
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#define CLEAR [view clear];
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#define PAUSE [view pause];
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#define DRAWPATH [view drawPath: p];
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#else
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#define DP(e,x,y)
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#define CLEAR
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#define PAUSE
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#define DRAWPATH
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#endif
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#define T(e,x,y) \
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{ \
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int i,r; \
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DP(e,x,y) \
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r=[p windingCountAtPoint: NSMakePoint(x,y)]; \
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for (i=5;i;i--) \
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{ \
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if ([p windingCountAtPoint: NSMakePoint(x,y)]!=r) \
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break; \
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} \
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if (i) \
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{ \
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pass(NO, \
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"path '%s', %15.8e %15.8e, expected %i, got inconsistant results", \
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str,(double)x,(double)y, \
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e); \
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} \
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else \
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{ \
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pass(r == e, \
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"path '%s', %15.8e %15.8e, expected %i, got %i", \
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str,(double)x,(double)y, \
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e,r); \
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} \
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}
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#define CHECK_AROUND(x,y, p00,p10,p20, p01,p11,p21, p02,p12,p22) \
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if (p00!=X) T(p00,nextafterf(x,-1000),nextafterf(y, 1000)) \
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if (p10!=X) T(p10, x ,nextafterf(y, 1000)) \
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if (p20!=X) T(p20,nextafterf(x, 1000),nextafterf(y, 1000)) \
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\
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if (p01!=X) T(p01,nextafterf(x,-1000), y ) \
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if (p11!=X) T(p11, x , y ) \
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if (p21!=X) T(p21,nextafterf(x, 1000), y ) \
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\
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if (p02!=X) T(p02,nextafterf(x,-1000),nextafterf(y,-1000)) \
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if (p12!=X) T(p12, x ,nextafterf(y,-1000)) \
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if (p22!=X) T(p22,nextafterf(x, 1000),nextafterf(y,-1000))
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#if 1
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str="empty";
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T(0,0,0)
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for (i=0;i<3;i++)
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{
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[p removeAllPoints];
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[p moveToPoint: NSMakePoint(100,100)];
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[p lineToPoint: NSMakePoint(100,200)];
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[p lineToPoint: NSMakePoint(200,200)];
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[p lineToPoint: NSMakePoint(200,100)];
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if (i==0)
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{
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str="(u) rect";
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}
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else if (i==1)
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{
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[p closePath];
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str="(c) rect";
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}
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else
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{
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[p lineToPoint: NSMakePoint(100,100)];
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[p closePath];
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str="(d) rect";
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}
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/* Obvious stuff. */
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T(0,0,0)
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T(1,150,150)
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/* Check around each corner. */
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CHECK_AROUND(100,100,
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0,X,1,
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0,X,X,
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0,0,0)
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CHECK_AROUND(200,100,
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1,X,0,
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X,X,0,
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0,0,0)
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CHECK_AROUND(200,200,
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0,0,0,
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X,X,0,
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1,X,0)
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CHECK_AROUND(100,200,
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0,0,0,
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0,X,X,
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0,X,1)
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if (!i)
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[p closePath];
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}
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for (i=0;i<3;i++)
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{
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[p removeAllPoints];
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[p moveToPoint: NSMakePoint(0,-100)];
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[p lineToPoint: NSMakePoint(-100,0)];
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[p lineToPoint: NSMakePoint(0,100)];
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[p lineToPoint: NSMakePoint(100,0)];
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if (i==0)
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{
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str="(u) tilted rect";
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}
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else if (i==1)
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{
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[p closePath];
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str="(c) tilted rect";
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}
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else
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{
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[p lineToPoint: NSMakePoint(0,-100)];
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[p closePath];
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str="(d) tilted rect";
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}
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/* Obvious stuff. */
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T(1,0,0)
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T(0,200,200)
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/* Check around each corner. */
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CHECK_AROUND(0,-100,
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1,1,1,
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0,X,0,
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0,0,0)
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CHECK_AROUND(0,100,
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0,0,0,
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0,X,0,
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1,1,1)
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CHECK_AROUND(-100,0,
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0,0,1,
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0,X,1,
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0,0,1)
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CHECK_AROUND(100,0,
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1,0,0,
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1,X,0,
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1,0,0)
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|
||||
/* Check some points on the edges. */
|
||||
CHECK_AROUND(50,50,
|
||||
X,0,0,
|
||||
1,X,0,
|
||||
1,1,X)
|
||||
|
||||
CHECK_AROUND(-50,50,
|
||||
0,0,X,
|
||||
0,X,1,
|
||||
X,1,1)
|
||||
|
||||
CHECK_AROUND(-50,-50,
|
||||
X,1,1,
|
||||
0,X,1,
|
||||
0,0,X)
|
||||
|
||||
CHECK_AROUND(50,-50,
|
||||
1,1,X,
|
||||
1,X,0,
|
||||
X,0,0)
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(200,200)];
|
||||
[p lineToPoint: NSMakePoint(200,100)];
|
||||
[p lineToPoint: NSMakePoint(100,100)];
|
||||
[p lineToPoint: NSMakePoint(100,200)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(200,200)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
[p moveToPoint: NSMakePoint(200,200)];
|
||||
[p lineToPoint: NSMakePoint(300,200)];
|
||||
[p lineToPoint: NSMakePoint(300,100)];
|
||||
[p lineToPoint: NSMakePoint(200,100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(200,200)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
if (i==0)
|
||||
str="(u) touching rects";
|
||||
else if (i==1)
|
||||
str="(c) touching rects";
|
||||
else
|
||||
str="(d) touching rects";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(0,0,0)
|
||||
T(1,150,150)
|
||||
T(1,250,150)
|
||||
|
||||
/* Check around the touching corners and edge. */
|
||||
CHECK_AROUND(200,200,
|
||||
0,0,0,
|
||||
X,X,X,
|
||||
1,1,1)
|
||||
|
||||
CHECK_AROUND(200,100,
|
||||
1,1,1,
|
||||
X,X,X,
|
||||
0,0,0)
|
||||
|
||||
CHECK_AROUND(200,150,
|
||||
1,1,1,
|
||||
1,1,1,
|
||||
1,1,1)
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(-100,200)];
|
||||
[p lineToPoint: NSMakePoint(100,200)];
|
||||
[p lineToPoint: NSMakePoint(100,-200)];
|
||||
[p lineToPoint: NSMakePoint(-100,-200)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(-100,200)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
[p moveToPoint: NSMakePoint(200,100)];
|
||||
[p lineToPoint: NSMakePoint(200,-100)];
|
||||
[p lineToPoint: NSMakePoint(-200,-100)];
|
||||
[p lineToPoint: NSMakePoint(-200,100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(200,100)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
if (i==0)
|
||||
str="(u) intersecting rects";
|
||||
else if (i==1)
|
||||
str="(c) intersecting rects";
|
||||
else
|
||||
str="(d) intersecting rects";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(2,0,0)
|
||||
T(0,200,200)
|
||||
T(1,150,0)
|
||||
T(1,0,150)
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(200,0)];
|
||||
[p lineToPoint: NSMakePoint(100,-100)];
|
||||
[p lineToPoint: NSMakePoint(100,100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(200,0)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
[p moveToPoint: NSMakePoint(200,0)];
|
||||
[p lineToPoint: NSMakePoint(300,100)];
|
||||
[p lineToPoint: NSMakePoint(300,-100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(200,0)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
if (i==0)
|
||||
str="(u) touching triangles";
|
||||
else if (i==1)
|
||||
str="(c) touching triangles";
|
||||
else
|
||||
str="(d) touching triangles";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(0,0,0)
|
||||
T(1,150,0)
|
||||
T(1,250,0)
|
||||
|
||||
CHECK_AROUND(200,0,
|
||||
1,0,1,
|
||||
1,X,1,
|
||||
1,0,1)
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
CLEAR
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(100,100)];
|
||||
[p lineToPoint: NSMakePoint(300,100)];
|
||||
[p lineToPoint: NSMakePoint(100,-100)];
|
||||
[p lineToPoint: NSMakePoint(300,-100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(100,100)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
// [view drawPath: p];
|
||||
|
||||
if (i==0)
|
||||
str="(u) self-intersection";
|
||||
else if (i==1)
|
||||
str="(c) self-intersection";
|
||||
else
|
||||
str="(d) self-intersection";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(0,0,0)
|
||||
T(1,200,50)
|
||||
T(-1,200,-50)
|
||||
|
||||
CHECK_AROUND(200,0,
|
||||
0,1,0,
|
||||
0,X,0,
|
||||
0,-1,0)
|
||||
// [view pause];
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(-100,200)];
|
||||
[p lineToPoint: NSMakePoint(100,200)];
|
||||
[p lineToPoint: NSMakePoint(100,-200)];
|
||||
[p lineToPoint: NSMakePoint(-100,-200)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(-100,200)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
[p moveToPoint: NSMakePoint(200,100)];
|
||||
[p lineToPoint: NSMakePoint(200,-100)];
|
||||
[p lineToPoint: NSMakePoint(-200,-100)];
|
||||
[p lineToPoint: NSMakePoint(-200,100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(200,100)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
if (i==0)
|
||||
str="(u) intersecting rects";
|
||||
else if (i==1)
|
||||
str="(c) intersecting rects";
|
||||
else
|
||||
str="(d) intersecting rects";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(2,0,0)
|
||||
T(0,200,200)
|
||||
T(1,150,0)
|
||||
T(1,0,150)
|
||||
|
||||
/* Intersection corners. */
|
||||
CHECK_AROUND(100,100,
|
||||
1,X,0,
|
||||
X,X,X,
|
||||
2,X,1)
|
||||
|
||||
CHECK_AROUND(100,-100,
|
||||
2,X,1,
|
||||
X,X,X,
|
||||
1,X,0)
|
||||
|
||||
CHECK_AROUND(-100,-100,
|
||||
1,X,2,
|
||||
X,X,X,
|
||||
0,X,1)
|
||||
|
||||
CHECK_AROUND(-100,100,
|
||||
0,X,1,
|
||||
X,X,X,
|
||||
1,X,2)
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
// CLEAR
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(100,100)];
|
||||
[p curveToPoint: NSMakePoint(100,-100)
|
||||
controlPoint1: NSMakePoint(200,100)
|
||||
controlPoint2: NSMakePoint(200,-100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(100,100)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
|
||||
// DRAWPATH
|
||||
|
||||
if (i==0)
|
||||
str="(u) curve 1";
|
||||
else if (i==1)
|
||||
str="(c) curve 1";
|
||||
else
|
||||
str="(d) curve 1";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(0,0,0)
|
||||
T(0,210,0)
|
||||
T(0,190,0)
|
||||
T(1,110,0)
|
||||
|
||||
/* "Extreme" point is at 175, 0. This is at the half-way point, so
|
||||
any tesselation by the standard method should get it right. */
|
||||
CHECK_AROUND(175, 0,
|
||||
1,0,0,
|
||||
1,X,0,
|
||||
1,0,0)
|
||||
|
||||
// PAUSE
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
CLEAR
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(-100,100)];
|
||||
[p curveToPoint: NSMakePoint(100,100)
|
||||
controlPoint1: NSMakePoint(-100,-100)
|
||||
controlPoint2: NSMakePoint(100,-100)];
|
||||
[p lineToPoint: NSMakePoint(100,-100)];
|
||||
[p curveToPoint: NSMakePoint(-100,-100)
|
||||
controlPoint1: NSMakePoint(100,100)
|
||||
controlPoint2: NSMakePoint(-100,100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(-100,100)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
|
||||
DRAWPATH
|
||||
|
||||
if (i==0)
|
||||
str="(u) curve 2";
|
||||
else if (i==1)
|
||||
str="(c) curve 2";
|
||||
else
|
||||
str="(d) curve 2";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(-1,0,0)
|
||||
T(1,-90,0)
|
||||
T(1, 90,0)
|
||||
|
||||
/* The two curves intersect at y=0, x= +- 400 * sqrt(3) / 9. */
|
||||
|
||||
CHECK_AROUND(-400*sqrt(3)/9, 0,
|
||||
1,0,-1,
|
||||
1,X,-1,
|
||||
1,0,-1)
|
||||
|
||||
CHECK_AROUND( 400*sqrt(3)/9, 0,
|
||||
-1,0,1,
|
||||
-1,X,1,
|
||||
-1,0,1)
|
||||
|
||||
PAUSE
|
||||
}
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
CLEAR
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(100,100)];
|
||||
[p curveToPoint: NSMakePoint(100,100)
|
||||
controlPoint1: NSMakePoint(100,200)
|
||||
controlPoint2: NSMakePoint(200,100)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(100,100)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
|
||||
DRAWPATH
|
||||
|
||||
if (i==0)
|
||||
str="(u) curve 3";
|
||||
else if (i==1)
|
||||
str="(c) curve 3";
|
||||
else
|
||||
str="(d) curve 3";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(0,0,0)
|
||||
T(1,105,105)
|
||||
|
||||
CHECK_AROUND(100,100,
|
||||
0,0,1,
|
||||
0,X,0,
|
||||
0,0,0)
|
||||
|
||||
PAUSE
|
||||
}
|
||||
#endif
|
||||
|
||||
for (i=0;i<3;i++)
|
||||
{
|
||||
CLEAR
|
||||
|
||||
/*
|
||||
|
||||
+-+
|
||||
| |
|
||||
+-* |
|
||||
| |
|
||||
+---+
|
||||
|
||||
*/
|
||||
|
||||
[p removeAllPoints];
|
||||
[p moveToPoint: NSMakePoint(0,0)];
|
||||
[p lineToPoint: NSMakePoint(0,100)];
|
||||
[p lineToPoint: NSMakePoint(100,100)];
|
||||
[p lineToPoint: NSMakePoint(100,-100)];
|
||||
[p lineToPoint: NSMakePoint(-100,-100)];
|
||||
[p lineToPoint: NSMakePoint(-100,0)];
|
||||
if (i==2)
|
||||
[p lineToPoint: NSMakePoint(0,0)];
|
||||
if (i>=1)
|
||||
[p closePath];
|
||||
|
||||
|
||||
DRAWPATH
|
||||
|
||||
if (i==0)
|
||||
str="(u) curve 3";
|
||||
else if (i==1)
|
||||
str="(c) curve 3";
|
||||
else
|
||||
str="(d) curve 3";
|
||||
|
||||
/* Obvious stuff. */
|
||||
T(0,-5,5)
|
||||
T(1,5,-5)
|
||||
|
||||
CHECK_AROUND(0,0,
|
||||
0,X,1,
|
||||
X,X,1,
|
||||
1,1,1)
|
||||
|
||||
PAUSE
|
||||
}
|
||||
|
||||
DESTROY(arp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue