finally fixed 3D view flipping

modules/path/view

@@ -358,7 +358,10 @@ function init_window() {
          camera.position.x = mod.x0+Math.sin(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
          camera.position.y = mod.y0+Math.cos(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
          camera.position.z = mod.r*Math.cos(mod.thetaxy)
+         if (Math.cos(mod.thetaxy) > 0)
             camera.up = new THREE.Vector3(Math.sin(mod.thetaz),Math.cos(mod.thetaz),0)
+         else
+            camera.up = new THREE.Vector3(-Math.sin(mod.thetaz),-Math.cos(mod.thetaz),0)
          camera.lookAt(new THREE.Vector3(mod.x0,mod.y0,0))
          camera.updateProjectionMatrix()
          renderer.render(scene,camera)
@@ -381,178 +384,6 @@ function init_window() {
       }
    }
 //
-// old_open_view_window
-//
-function old_open_view_window() {
-   //
-   // globals
-   //
-   var container,scene,camera,renderer,win,controls
-   //
-   // open the window
-   //
-   open_window()
-   //
-   // open_window
-   //
-   function open_window() {
-      //
-      // open window
-      //
-      win = window.open('')
-      mod.win = win
-      //
-      // load three.js
-      //
-      var script = document.createElement('script')
-      script.type = 'text/javascript'
-      script.onload = init_window
-      script.src = 'js/three.js/three.min.js'
-      mod.div.appendChild(script)
-      }
-   //
-   // init_window
-   //
-   function init_window() {
-      //
-      // close button
-      //
-      var btn = document.createElement('button')
-         btn.appendChild(document.createTextNode('close'))
-         btn.style.padding = mods.ui.padding
-         btn.style.margin = 1
-         btn.addEventListener('click',function(){
-            win.close()
-            mod.win = undefined
-            })
-         win.document.body.appendChild(btn)
-      //
-      // label text
-      //
-      var text = win.document.createTextNode(' left: pan, right: rotate, scroll: zoom')
-         win.document.body.appendChild(text)
-      //
-      // GL container
-      //
-      win.document.body.appendChild(document.createElement('br'))   
-      container = win.document.createElement('div')
-      container.style.overflow = 'hidden'
-      win.document.body.appendChild(container)
-      //
-      // event handlers
-      //
-      container.addEventListener('contextmenu',context_menu)
-      container.addEventListener('mousedown',mouse_down)
-      container.addEventListener('mouseup',mouse_up)
-      container.addEventListener('mousemove',mouse_move)
-      container.addEventListener('wheel',mouse_wheel)
-      //
-      // add scene
-      //
-      scene = new THREE.Scene()
-      mod.scene = scene
-      var width = win.innerWidth
-      var height = win.innerHeight
-      var aspect = width/height
-      var near = 0.1
-      var far = 1000000
-      camera = new THREE.PerspectiveCamera(90,aspect,near,far)
-      mod.camera = camera
-      scene.add(camera)
-      //
-      // add renderer
-      //
-      renderer = new THREE.WebGLRenderer({antialias:true})
-      mod.renderer = renderer
-      renderer.setClearColor(0xffffff)
-      renderer.setSize(width,height)
-      container.appendChild(renderer.domElement)
-      //
-      // show the path if available
-      //
-      show_path()
-      }
-   //
-   // context_menu
-   //
-   function context_menu(evt) {
-      evt.preventDefault()
-      evt.stopPropagation()
-      return (false)
-      }
-   //
-   // mouse_down
-   //
-   function mouse_down(evt) {
-      evt.preventDefault()
-      evt.stopPropagation()
-      mod.button = evt.button
-      mod.x = evt.clientX
-      mod.y = evt.clientY
-      }
-   //
-   // mouse_up
-   //
-   function mouse_up(evt) {
-      mod.button = undefined
-      mod.x = evt.clientX
-      mod.y = evt.clientY
-      }
-   //
-   // mouse_move
-   //
-   function mouse_move(evt) {
-      evt.preventDefault()
-      evt.stopPropagation()
-      var dx = evt.clientX-mod.x
-      var dy = evt.clientY-mod.y
-      mod.x = evt.clientX
-      mod.y = evt.clientY
-      if (mod.button == 0) {
-         mod.x0 += 
-            Math.sin(mod.thetaz)*mod.height*dy/win.innerHeight
-            -Math.cos(mod.thetaz)*mod.width*dx/win.innerWidth
-         mod.y0 += 
-            Math.cos(mod.thetaz)*mod.height*dy/win.innerHeight
-            +Math.sin(mod.thetaz)*mod.width*dx/win.innerWidth
-         camera.position.x = mod.x0+Math.sin(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
-         camera.position.y = mod.y0+Math.cos(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
-         camera.position.z = mod.r*Math.cos(mod.thetaxy)
-         camera.position.z = mod.r*Math.cos(mod.thetaxy)
-         camera.up = new THREE.Vector3(Math.sin(mod.thetaz),Math.cos(mod.thetaz),0)
-         camera.lookAt(new THREE.Vector3(mod.x0,mod.y0,0))
-         camera.updateProjectionMatrix()
-         renderer.render(scene,camera)
-         }
-      else if (mod.button == 2) {
-         mod.thetaxy += dy/win.innerHeight
-         mod.thetaz += dx/win.innerWidth
-         camera.position.x = mod.x0+Math.sin(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
-         camera.position.y = mod.y0+Math.cos(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
-         camera.position.z = mod.r*Math.cos(mod.thetaxy)
-         camera.up = new THREE.Vector3(Math.sin(mod.thetaz),Math.cos(mod.thetaz),0)
-         camera.lookAt(new THREE.Vector3(mod.x0,mod.y0,0))
-         camera.updateProjectionMatrix()
-         renderer.render(scene,camera)
-         }
-      }
-   //
-   // mouse_wheel
-   //
-   function mouse_wheel(evt) {
-      evt.preventDefault()
-      evt.stopPropagation()
-      var dy = evt.deltaY/win.innerHeight
-      mod.r += mod.height*dy
-      camera.position.x = mod.x0+Math.sin(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
-      camera.position.y = mod.y0+Math.cos(mod.thetaz)*mod.r*Math.sin(mod.thetaxy)
-      camera.position.z = mod.r*Math.cos(mod.thetaxy)
-      camera.lookAt(new THREE.Vector3(mod.x0,mod.y0,0))
-      camera.updateProjectionMatrix()
-      renderer.render(scene,camera)
-      }
-   }
-//
 // return values
 //
 return ({