transform tool wip

src/canvas.h

@@ -122,6 +122,7 @@ public:
     glm::vec4 m_box{ 0 };
     glm::vec4 m_vp{ 0 };
     glm::vec2 m_pan{ 0 };
+    glm::vec2 m_size{ 0 };
     int m_width = 0;
     int m_height = 0;
     bool m_use_instanced = false;
@@ -229,12 +230,13 @@ public:
     void point_unproject(glm::vec2 loc, glm::vec4 vp, glm::mat4 camera, glm::mat4 proj,
                          glm::vec3 &out_origin, glm::vec3 &out_dir);
     void point_unproject(glm::vec2 loc, glm::vec3 &out_origin, glm::vec3 &out_dir);
+    glm::vec3 point_trace(glm::vec2 loc);
     bool point_trace(glm::vec2 loc, glm::vec3& ray_origin, glm::vec3& ray_dir,
                      glm::vec3& hit_pos, glm::vec2& fb_pos, glm::vec3& hit_normal, int& out_plane_id);
     bool point_trace_plane(glm::vec2 loc, glm::vec3& ray_origin, glm::vec3& ray_dir,
                      glm::vec3& hit_pos, glm::vec3& hit_normal, glm::vec2& hit_fb_pos, int plane_id);
     std::vector<vertex_t> triangulate_simple(const std::vector<vertex_t>& vertices);
-    std::vector<vertex_t> triangulate(const std::vector<std::shared_ptr<p2t::Point>>& points);
+    std::vector<vertex_t> triangulate(const std::vector<vertex_t>& points);
     std::vector<vertex_t> triangulate(const std::vector<glm::vec2>& points);
     void project2Dpoints(std::vector<vertex_t>& vertices);
     glm::vec3 project2Dpoint(glm::vec2 pt);