From 4154f89b1ebff83228f51252de6b93a49fc6ed96 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@getdrop.com>
Date: Sat, 3 Feb 2018 11:41:22 +0000
Subject: warping positioning interface working

---
 gui/src/lineTransformer.cpp | 10 ++++++++++
 gui/src/lineTransformer.h   |  2 ++
 gui/src/ofApp.cpp           | 31 +++++++++++++++++++++++++++++--
 3 files changed, 41 insertions(+), 2 deletions(-)

(limited to 'gui/src')

diff --git a/gui/src/lineTransformer.cpp b/gui/src/lineTransformer.cpp
index a21d020..080eb9d 100644
--- a/gui/src/lineTransformer.cpp
+++ b/gui/src/lineTransformer.cpp
@@ -1,5 +1,6 @@
 #include "lineTransformer.h"
 
+
 void lineTransformer::drawWarpFrame(glm::vec2 warpframe[4]){
     ofSetColor(255,255,255);
     ofNoFill();
@@ -97,6 +98,15 @@ ofPolyline lineTransformer::polyLineTransform(const ofMatrix4x4 xform, const ofP
 	return tempPoly;
 }
 
+colourPolyline lineTransformer::polyLineTransform(const ofMatrix4x4 xform,colourPolyline& poly){
+	colourPolyline tempPoly;
+	for (int i=0;i<poly.size();i++){
+		tempPoly.addVertex(ofVec3f(poly[i])*xform,poly.getColourAt(i));
+	}
+	return tempPoly;
+}
+		
+
 ofPolyline lineTransformer::makePolygon(int num,float diam){
 	ofPolyline poly;
 	float step=PI*2/num;
diff --git a/gui/src/lineTransformer.h b/gui/src/lineTransformer.h
index 54424d0..4eabf14 100644
--- a/gui/src/lineTransformer.h
+++ b/gui/src/lineTransformer.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "ofMain.h"
+#include "colourPolyline.h"
 
 class lineTransformer {
 
@@ -11,6 +12,7 @@ class lineTransformer {
 		void static gaussianElimination(float * input, int n);
 		glm::mat4 static getPerspectiveTransformMatrix(const glm::vec2 src[4], const glm::vec2 dst[4]);
 		ofPolyline static polyLineTransform(const ofMatrix4x4 xform,const ofPolyline& poly);
+		colourPolyline static polyLineTransform(const ofMatrix4x4 xform,colourPolyline& poly);
 		ofPolyline static makePolygon(int num,float diam);
 		void static drawPoly(ofPolyline poly,float x,float y);
 
diff --git a/gui/src/ofApp.cpp b/gui/src/ofApp.cpp
index 3b24b43..fb179e9 100644
--- a/gui/src/ofApp.cpp
+++ b/gui/src/ofApp.cpp
@@ -412,12 +412,39 @@ void ofApp::drawOutput(ofEventArgs & args){
 		}
 	}
 
+	glm::vec2 src[]={
+    	glm::vec2(0,0),
+    	glm::vec2(ofGetWidth(),0),
+    	glm::vec2(ofGetWidth(),ofGetHeight()),
+    	glm::vec2(0,ofGetHeight())
+    };
+
+    glm::vec2 mp=glm::vec2(outputWindowSize.x/2,outputWindowSize.y/2);
+
+    glm::vec2 scaled_dest[]={
+    	((warpframe[0]-mp)*outputScale*outputOffsetScale)+mp,
+    	((warpframe[1]-mp)*outputScale*outputOffsetScale)+mp,
+    	((warpframe[2]-mp)*outputScale*outputOffsetScale)+mp,
+    	((warpframe[3]-mp)*outputScale*outputOffsetScale)+mp
+    };
+
+    ofMatrix4x4 scaled_warp =lineTransformer::getPerspectiveTransformMatrix(src,scaled_dest);
+    ofMatrix4x4 warp =lineTransformer::getPerspectiveTransformMatrix(src,warpframe);
+
+    vector <colourPolyline> warpedOutput;
+    vector <colourPolyline> scaledWarpedOutput;
+
+    for (auto s:laserOutput){
+    	warpedOutput.push_back(lineTransformer::polyLineTransform(warp,s));
+    	scaledWarpedOutput.push_back(lineTransformer::polyLineTransform(scaled_warp,s));
+    }
+
 	int num = 0;
 
 	if (laserOutput.size()){
-		num=laser.draw(laserOutput);
+		num=laser.draw(scaledWarpedOutput);
 
-		for (auto& shape:laserOutput){
+		for (auto& shape:warpedOutput){
 			shape.draw();
 		}
 	}
-- 
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