Krisjanis Rijnieks
11 years ago
10 changed files with 397 additions and 54 deletions
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#include "ofxQuadSurface.h" |
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ofxQuadSurface::ofxQuadSurface() |
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{ |
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cout << "ofxQuadSurface constructor." << endl; |
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setup(); |
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} |
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ofxQuadSurface::~ofxQuadSurface() |
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{ |
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cout << "ofxQuadSurface destructor." << endl; |
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} |
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void ofxQuadSurface::setup() |
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{ |
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// Create 4 points for the 2 triangles
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ofVec2f p1 = ofVec2f(0, 0); |
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ofVec2f p2 = ofVec2f(0, ofGetHeight()); |
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ofVec2f p3 = ofVec2f(ofGetWidth(), ofGetHeight()); |
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ofVec2f p4 = ofVec2f(ofGetWidth(), 0); |
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// Create 4 point for the texture coordinates
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ofVec2f t1 = ofVec2f(ofVec2f(0.0f, 0.0f)); |
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ofVec2f t2 = ofVec2f(ofVec2f(1.0f, 0.0f)); |
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ofVec2f t3 = ofVec2f(ofVec2f(1.0f, 1.0f)); |
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ofVec2f t4 = ofVec2f(ofVec2f(0.0f, 1.0f)); |
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setup( p1, p2, p3, p4, t1, t2, t3, t4, texture ); |
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} |
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void ofxQuadSurface::setup( ofVec2f p1, ofVec2f p2, ofVec2f p3, ofVec2f p4, |
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ofVec2f t1, ofVec2f t2, ofVec2f t3, ofVec2f t4, ofTexture* texturePtr ) |
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{ |
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// Assign texture
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texture = texturePtr; |
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// Clear mesh
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mesh.clear(); |
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// Create a surface with the points
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mesh.addVertex( p1 ); |
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mesh.addVertex( p2 ); |
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mesh.addVertex( p3 ); |
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mesh.addVertex( p4 ); |
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// Add 2 triangles
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mesh.addTriangle(0, 2, 3); |
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mesh.addTriangle(0, 1, 2); |
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// Add texture coordinates
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mesh.addTexCoord(t1); |
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mesh.addTexCoord(t2); |
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mesh.addTexCoord(t3); |
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mesh.addTexCoord(t4); |
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} |
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void ofxQuadSurface::draw() |
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{ |
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texture->bind(); |
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mesh.draw(); |
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texture->unbind(); |
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} |
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void ofxQuadSurface::setVertex(int index, ofVec2f p) |
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{ |
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if ( index > 3 ) { |
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ofLog() << "Vertex with this index does not exist: " << index << endl; |
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return; |
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} |
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mesh.setVertex(index, p); |
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} |
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void ofxQuadSurface::setTexCoord(int index, ofVec2f t) |
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{ |
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if ( index > 3 ) { |
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ofLog() << "Texture coordinate with this index does not exist: " << index << endl; |
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return; |
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} |
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mesh.setTexCoord(index, t); |
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} |
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int ofxQuadSurface::getType() |
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{ |
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return ofxSurfaceType::QUAD_SURFACE; |
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} |
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bool ofxQuadSurface::hitTest(ofVec2f p) |
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{ |
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// Construct ofPolyline from vertices
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ofPolyline line = getHitArea(); |
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if ( line.inside(p.x, p.y) ) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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ofVec2f ofxQuadSurface::getVertex(int index) |
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{ |
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if ( index > 3 ) { |
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ofLog() << "Vertex with this index does not exist: " << index << endl; |
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throw std::runtime_error("Vertex index out of bounds."); |
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} |
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ofVec3f vert = mesh.getVertex(index); |
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return ofVec2f(vert.x, vert.y); |
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} |
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ofVec2f ofxQuadSurface::getTexCoord(int index) |
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{ |
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if (index > 3) { |
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throw std::runtime_error("Texture coordinate index out of bounds."); |
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} |
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return mesh.getTexCoord(index); |
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} |
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ofPolyline ofxQuadSurface::getHitArea() |
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{ |
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ofPolyline line; |
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line.addVertex( ofPoint( mesh.getVertex(0).x, mesh.getVertex(0).y ) ); |
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line.addVertex( ofPoint( mesh.getVertex(1).x, mesh.getVertex(1).y ) ); |
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line.addVertex( ofPoint( mesh.getVertex(2).x, mesh.getVertex(2).y ) ); |
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line.addVertex( ofPoint( mesh.getVertex(3).x, mesh.getVertex(3).y ) ); |
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line.close(); |
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return line; |
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} |
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ofPolyline ofxQuadSurface::getTextureHitArea() |
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{ |
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ofPolyline line; |
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vector<ofVec2f>& texCoords = mesh.getTexCoords(); |
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ofVec2f textureSize = ofVec2f(texture->getWidth(), texture->getHeight()); |
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for ( int i=0; i<texCoords.size(); i++ ) { |
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line.addVertex( ofPoint( texCoords[i] * textureSize ) ); |
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} |
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line.close(); |
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return line; |
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} |
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vector<ofVec3f>& ofxQuadSurface::getVertices() |
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{ |
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// return only joint vertices
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return mesh.getVertices(); |
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} |
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vector<ofVec2f>& ofxQuadSurface::getTexCoords() |
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{ |
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return mesh.getTexCoords(); |
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} |
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@ -0,0 +1,34 @@ |
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#ifndef H_OFX_QUAD_SURFACE |
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#define H_OFX_QUAD_SURFACE |
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#include "ofMain.h" |
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#include "ofxBaseSurface.h" |
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#include "ofxSurfaceType.h" |
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class ofxQuadSurface : public ofxBaseSurface |
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{ |
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public: |
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ofxQuadSurface(); |
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~ofxQuadSurface(); |
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void setup(); |
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void setup( ofVec2f p1, ofVec2f p2, ofVec2f p3, ofVec2f p4, |
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ofVec2f t1, ofVec2f t2, ofVec2f t3, ofVec2f t4, |
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ofTexture* texturePtr ); |
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void draw(); |
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void setVertex( int index, ofVec2f p ); |
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void setTexCoord( int index, ofVec2f t ); |
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int getType(); |
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bool hitTest(ofVec2f p); |
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ofVec2f getVertex(int index); |
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ofVec2f getTexCoord(int index); |
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ofPolyline getHitArea(); |
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ofPolyline getTextureHitArea(); |
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vector<ofVec3f>& getVertices(); |
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vector<ofVec2f>& getTexCoords(); |
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}; |
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#endif |
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