AutoPolygon is a helper Object AutoPolygon's purpose is to process an image into 2d polygon mesh in runtime It has functions for each step in the process, from tracing all the points, to triangulation the result can be then passed to Sprite::create() to create a Polygon Sprite. More...
Public Member Functions | |
| AutoPolygon (const std::string &filename) | |
| create an AutoPolygon and initialize it with an image file the image must be a 32bit PNG for current version 3.7 More... | |
| ~AutoPolygon () | |
| Destructor of AutoPolygon. | |
| std::vector< Vec2 > | trace (const cocos2d::Rect &rect, float threshold=0.0f) |
| trace all the points along the outline of the image, More... | |
| var | trace ( var rect, var 0f) |
| trace all the points along the outline of the image, More... | |
| local | trace ( local rect, local 0f) |
| trace all the points along the outline of the image, More... | |
| std::vector< Vec2 > | reduce (const std::vector< Vec2 > &points, const Rect &rect, float epsilon=2.0f) |
| reduce the amount of points so its faster for GPU to process and draw based on Ramer-Douglas-Peucker algorithm More... | |
| local | reduce ( local points, local rect, local 0f) |
| reduce the amount of points so its faster for GPU to process and draw based on Ramer-Douglas-Peucker algorithm More... | |
| std::vector< Vec2 > | expand (const std::vector< Vec2 > &points, const Rect &rect, float epsilon) |
| expand the points along their edge, useful after you reduce the points that cuts into the sprite using ClipperLib More... | |
| TrianglesCommand::Triangles | triangulate (const std::vector< Vec2 > &points) |
| Triangulate the input points into triangles for rendering using poly2tri. More... | |
| void | calculateUV (const Rect &rect, V3F_C4B_T2F *verts, ssize_t count) |
| calculate the UV coordinates for each points based on a texture rect More... | |
| PolygonInfo | generateTriangles (const Rect &rect=Rect::ZERO, float epsilon=2.0f, float threshold=0.05f) |
| a helper function, packing trace, reduce, expand, triangulate and calculate uv in one function More... | |
| local | generateTriangles ( local ZERO, local 0f, local 05f) |
| a helper function, packing trace, reduce, expand, triangulate and calculate uv in one function More... | |
Static Public Member Functions | |
| static PolygonInfo | generatePolygon (const std::string &filename, const Rect &rect=Rect::ZERO, float epsilon=2.0f, float threshold=0.05f) |
| a helper function, packing autoPolygon creation, trace, reduce, expand, triangulate and calculate uv in one function More... | |
AutoPolygon is a helper Object AutoPolygon's purpose is to process an image into 2d polygon mesh in runtime It has functions for each step in the process, from tracing all the points, to triangulation the result can be then passed to Sprite::create() to create a Polygon Sprite.
1.8.8 
