From 05be256f7b2c106101ec990a06e7dbf474ff9dda Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@getdrop.com>
Date: Sat, 20 Jan 2018 01:16:15 +0000
Subject: correct clipping mask

---
 drawing/src/ofApp.cpp | 59 ++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 51 insertions(+), 8 deletions(-)

(limited to 'drawing/src/ofApp.cpp')

diff --git a/drawing/src/ofApp.cpp b/drawing/src/ofApp.cpp
index 89b7b97..28bca20 100644
--- a/drawing/src/ofApp.cpp
+++ b/drawing/src/ofApp.cpp
@@ -2,6 +2,8 @@
 #include "glew.h"
 
 
+vector<std::string> cmdnames={"moveTo","lineTo","curveTo","bezierTo","quadBezierTo","arc","arcNegative","close"};
+
 //--------------------------------------------------------------
 void ofApp::setup(){
 	ofxSVG svg;
@@ -17,13 +19,30 @@ void ofApp::setup(){
 
 	cout << "Drawing: found " << paths.size() << " paths with " << segmenters.size() << " shapes" <<std::endl;
 
-	svg.load("shapes.svg");
+	svg.load("lorenzo.svg");
 	paths= svg.getPaths();
-	for (int i=0;i<paths.size();i++){
-		vector <ofPolyline> outlines= paths[i].getOutline();
-		for (int j=0;j<outlines.size();j++){
-			mask.push_back(outlines[j]);
+
+	for (auto& path:paths){
+		//paths[i].setMode(ofPath::COMMANDS);
+		path.setPolyWindingMode(OF_POLY_WINDING_ODD);
+		
+		vector <ofPolyline> outlines= path.getOutline();
+		for (auto& outline:outlines){
+			mask.push_back(outline);
+		}
+		/*
+		vector<ofPath::Command> cmds=paths[i].getCommands();
+
+		std::stringstream strm;
+		strm << "Mask: found " << cmds.size() << " commands (";
+		for (auto& cmd:cmds){
+			strm << cmdnames[cmd.type] <<",";
 		}
+
+		strm << ")" << std::endl;
+		cout << strm.str();
+		*/
+
 	}
 
 	cout << "Mask: found " << paths.size() << " paths with " << mask.size() << " shapes" <<std::endl;
@@ -78,14 +97,33 @@ void ofApp::draw(){
 			}
 			clipper.addPolylines(shapes,ClipperLib::ptSubject);
 			vector<ofPolyline> clipped = clipper.getClippedLines(ClipperLib::ctIntersection);
-			segmentsdrawn=clipped.size();
 			for (auto& clip: clipped)
 		    {
 		        clip.draw();
+		        segmentsdrawn++;
 		        pointsdrawn+=clip.size();
 		    }
+		    break;
 		}
 		case 2:{
+			vector <ofPolyline> shapes;
+			for (auto shape=segmenters.begin();shape!=segmenters.end();shape++){
+				auto segments=shape->getSegments(numsegments,coverage,phase);
+				for (auto segment=segments.begin();segment!=segments.end();segment++){
+					shapes.push_back(*segment);
+				}
+			}
+			clipper.addPolylines(shapes,ClipperLib::ptSubject);
+			vector<ofPolyline> clipped = clipper.getClippedLines(ClipperLib::ctDifference);
+			for (auto& clip: clipped)
+		    {
+		        clip.draw();
+		        segmentsdrawn++;
+		        pointsdrawn+=clip.size();
+		    }
+		    break;
+		}
+		case 3:{
 			int w=ofRandom(1000);
 			segmenters[w%segmenters.size()].draw();
 			segmentsdrawn=1;
@@ -93,7 +131,12 @@ void ofApp::draw(){
 			break;
 		}
 	}
-
+	/*
+	ofxSVG svg;
+	svg.load("lorenzos.svg");
+	vector <ofPath> paths= svg.getPaths();
+	for (auto& l:paths) l.draw();
+	*/
 	
 
 	std::stringstream strm;
@@ -141,7 +184,7 @@ void ofApp::keyReleased(int key){
 			break;
 		}
 		case 'p':{
-			mode=(mode+1)%3;
+			mode=(mode+1)%4;
 			break;
 		}
 	}
-- 
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