summaryrefslogtreecommitdiff
path: root/graphics/asymptote/drawpath3.h
diff options
context:
space:
mode:
authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/asymptote/drawpath3.h
Initial commit
Diffstat (limited to 'graphics/asymptote/drawpath3.h')
-rw-r--r--graphics/asymptote/drawpath3.h206
1 files changed, 206 insertions, 0 deletions
diff --git a/graphics/asymptote/drawpath3.h b/graphics/asymptote/drawpath3.h
new file mode 100644
index 0000000000..c6515057c9
--- /dev/null
+++ b/graphics/asymptote/drawpath3.h
@@ -0,0 +1,206 @@
+/*****
+ * drawpath3.h
+ *
+ * Stores a path3 that has been added to a picture.
+ *****/
+
+#ifndef DRAWPATH3_H
+#define DRAWPATH3_H
+
+#include "drawelement.h"
+#include "path3.h"
+#include "beziercurve.h"
+
+namespace camp {
+
+class drawPath3 : public drawElement {
+protected:
+ const path3 g;
+ triple center;
+ bool straight;
+ prc::RGBAColour color;
+ bool invisible;
+ Interaction interaction;
+ triple Min,Max;
+public:
+#ifdef HAVE_GL
+ static BezierCurve R;
+#endif
+ drawPath3(path3 g, triple center, const pen& p, Interaction interaction,
+ const string& key="") :
+ drawElement(key), g(g), center(center), straight(g.piecewisestraight()),
+ color(rgba(p)), invisible(p.invisible()), interaction(interaction),
+ Min(g.min()), Max(g.max()) {}
+
+ drawPath3(const double* t, const drawPath3 *s) :
+ drawElement(s->KEY), g(camp::transformed(t,s->g)), straight(s->straight),
+ color(s->color), invisible(s->invisible), interaction(s->interaction),
+ Min(g.min()), Max(g.max()) {
+ center=t*s->center;
+ }
+
+ virtual ~drawPath3() {}
+
+ bool is3D() {return true;}
+
+ void bounds(const double* t, bbox3& B) {
+ if(t != NULL) {
+ const path3 tg(camp::transformed(t,g));
+ B.add(tg.min());
+ B.add(tg.max());
+ } else {
+ B.add(Min);
+ B.add(Max);
+ }
+ }
+
+ void ratio(const double* t, pair &b, double (*m)(double, double), double,
+ bool &first) {
+ pair z;
+ if(t != NULL) {
+ const path3 tg(camp::transformed(t,g));
+ z=tg.ratio(m);
+ } else z=g.ratio(m);
+
+ if(first) {
+ b=z;
+ first=false;
+ } else b=pair(m(b.getx(),z.getx()),m(b.gety(),z.gety()));
+ }
+
+ bool write(prcfile *out, unsigned int *, double, groupsmap&);
+
+ void render(double, const triple&, const triple&, double,
+ bool transparent);
+
+ drawElement *transformed(const double* t);
+};
+
+class drawNurbsPath3 : public drawElement {
+protected:
+ size_t degree;
+ size_t n;
+ triple *controls;
+ double *weights;
+ double *knots;
+ prc::RGBAColour color;
+ bool invisible;
+ triple Min,Max;
+
+#ifdef HAVE_GL
+ GLfloat *Controls;
+ GLfloat *Knots;
+#endif
+
+public:
+ drawNurbsPath3(const vm::array& g, const vm::array* knot,
+ const vm::array* weight, const pen& p, const string& key="") :
+ drawElement(key), color(rgba(p)), invisible(p.invisible()) {
+ size_t weightsize=checkArray(weight);
+
+ string wrongsize="Inconsistent NURBS data";
+ n=checkArray(&g);
+
+ if(n == 0 || (weightsize != 0 && weightsize != n))
+ reportError(wrongsize);
+
+ controls=new(UseGC) triple[n];
+
+ size_t k=0;
+ for(size_t i=0; i < n; ++i)
+ controls[k++]=vm::read<triple>(g,i);
+
+ if(weightsize > 0) {
+ size_t k=0;
+ weights=new(UseGC) double[n];
+ for(size_t i=0; i < n; ++i)
+ weights[k++]=vm::read<double>(weight,i);
+ } else weights=NULL;
+
+ size_t nknots=checkArray(knot);
+
+ if(nknots <= n+1 || nknots > 2*n)
+ reportError(wrongsize);
+
+ degree=nknots-n-1;
+
+ run::copyArrayC(knots,knot,0,NoGC);
+
+#ifdef HAVE_GL
+ Controls=NULL;
+#endif
+ }
+
+ drawNurbsPath3(const double* t, const drawNurbsPath3 *s) :
+ drawElement(s->KEY), degree(s->degree), n(s->n), weights(s->weights),
+ knots(s->knots), color(s->color), invisible(s->invisible) {
+ controls=new(UseGC) triple[n];
+ for(unsigned int i=0; i < n; ++i)
+ controls[i]=t*s->controls[i];
+
+#ifdef HAVE_GL
+ Controls=NULL;
+#endif
+ }
+
+ bool is3D() {return true;}
+
+ void bounds(const double* t, bbox3& b);
+
+ virtual ~drawNurbsPath3() {}
+
+ bool write(prcfile *out, unsigned int *, double, groupsmap&);
+
+ void displacement();
+ void ratio(const double* t, pair &b, double (*m)(double, double), double fuzz,
+ bool &first);
+
+ void render(double size2, const triple& Min, const triple& Max,
+ double perspective, bool transparent);
+
+ drawElement *transformed(const double* t);
+};
+
+// Draw a pixel.
+class drawPixel : public drawElement {
+ triple v;
+ pen p;
+ prc::RGBAColour color;
+ double width;
+ bool invisible;
+ triple Min,Max;
+public:
+#ifdef HAVE_GL
+ static Pixel R;
+#endif
+ drawPixel(const triple& v, const pen& p, double width, const string& key="")
+ : drawElement(key), v(v), p(p), color(rgba(p)), width(width),
+ invisible(p.invisible()) {}
+
+ void bounds(const double* t, bbox3& B) {
+ Min=Max=(t != NULL) ? t*v : v;
+ B.add(Min);
+ }
+
+ void ratio(const double* t, pair &b, double (*m)(double, double), double,
+ bool &first) {
+ triple V=(t != NULL) ? t*v : v;
+ pair z=pair(xratio(V),yratio(V));
+
+ if(first) {
+ b=z;
+ first=false;
+ } else b=pair(m(b.getx(),z.getx()),m(b.gety(),z.gety()));
+ }
+
+ void render(double size2, const triple& b, const triple& B,
+ double perspective, bool transparent);
+
+ bool write(prcfile *out, unsigned int *, double, groupsmap&);
+
+ drawElement *transformed(const double* t);
+};
+
+}
+
+#endif