changes to Floorplan 3D

This commit is contained in:
2018-07-30 20:59:54 +02:00
parent e45cc1d3c6
commit 4d740d6236
7 changed files with 484 additions and 76 deletions

View File

@@ -5,59 +5,7 @@
#include "Polygon2.h"
#include "Triangle3.h"
class TriangleStrip {
private:
std::vector<Point3> pts;
public:
void add(const Point3 p) {
pts.push_back(p);
}
void set(const std::vector<Point3>& pts) {
this->pts = pts;
}
void toTriangles(std::vector<Triangle3>& trias) const {
// https://en.wikipedia.org/wiki/Triangle_strip
// GL_TRIANGLE_STRIP
// Draws a series of triangles (three-sided polygons) using vertices v0, v1, v2, then v2, v1, v3 (note the order), then v2, v3, v4, and so on. The ordering is to ensure that the triangles are all drawn with the same orientation so that the strip can correctly form part of a surface.
// For odd n, vertices n, n+1, and n+2 define triangle n. For even n, vertices n+1, n, and n+2 define triangle n. N-2 triangles are drawn.
for (size_t j = 2; j < pts.size(); ++j) {
if (j % 2 == 0) {
Triangle3 tria(
pts[j-2],
pts[j-1],
pts[j]
);
trias.push_back(tria);
} else {
Triangle3 tria(
pts[j-1],
pts[j-2],
pts[j]
);
trias.push_back(tria);
}
}
}
std::vector<Triangle3> toTriangles() const {
std::vector<Triangle3> trias;
toTriangles(trias);
return trias;
}
};
#include "TriangleStrip3.h"
class GPCPolygon2 {
@@ -168,7 +116,7 @@ public:
for (int i = 0; i < res.num_strips; ++i) {
gpc_vertex_list lst = res.strip[i];
TriangleStrip strip;
TriangleStrip3 strip;
for (int j = 0; j < lst.num_vertices; ++j) {
gpc_vertex& v = lst.vertex[j];
strip.add(Point3(v.x, v.y, z));

59
geo/TriangleStrip3.h Normal file
View File

@@ -0,0 +1,59 @@
#ifndef TRIANGLESTRIP3_H
#define TRIANGLESTRIP3_H
#include <vector>
#include "Point3.h"
#include "Triangle3.h"
class TriangleStrip3 {
private:
std::vector<Point3> pts;
public:
void add(const Point3 p) {
pts.push_back(p);
}
void set(const std::vector<Point3>& pts) {
this->pts = pts;
}
void toTriangles(std::vector<Triangle3>& trias) const {
// https://en.wikipedia.org/wiki/Triangle_strip
// GL_TRIANGLE_STRIP
// Draws a series of triangles (three-sided polygons) using vertices v0, v1, v2, then v2, v1, v3 (note the order), then v2, v3, v4, and so on. The ordering is to ensure that the triangles are all drawn with the same orientation so that the strip can correctly form part of a surface.
// For odd n, vertices n, n+1, and n+2 define triangle n. For even n, vertices n+1, n, and n+2 define triangle n. N-2 triangles are drawn.
for (size_t j = 2; j < pts.size(); ++j) {
if (j % 2 == 0) {
Triangle3 tria(
pts[j-2],
pts[j-1],
pts[j]
);
trias.push_back(tria);
} else {
Triangle3 tria(
pts[j-1],
pts[j-2],
pts[j]
);
trias.push_back(tria);
}
}
}
std::vector<Triangle3> toTriangles() const {
std::vector<Triangle3> trias;
toTriangles(trias);
return trias;
}
};
#endif // TRIANGLESTRIP3_H