@ -179,7 +179,9 @@ function Graph (container, data, options) {
border : '#666' ,
background : '#FFFFC6'
}
}
} ,
moveable : true ,
zoomable : true
} ;
this . editMode = this . constants . dataManipulation . initiallyVisible ;
@ -519,7 +521,8 @@ Graph.prototype.setOptions = function (options) {
if ( options . freezeForStabilization !== undefined ) { this . constants . freezeForStabilization = options . freezeForStabilization ; }
if ( options . configurePhysics !== undefined ) { this . constants . configurePhysics = options . configurePhysics ; }
if ( options . stabilizationIterations !== undefined ) { this . constants . stabilizationIterations = options . stabilizationIterations ; }
if ( options . moveable !== undefined ) { this . constants . moveable = options . moveable ; }
if ( options . zoomable !== undefined ) { this . constants . zoomable = options . zoomable ; }
if ( options . labels !== undefined ) {
@ -968,16 +971,18 @@ Graph.prototype._handleOnDrag = function(event) {
}
}
else {
// move the graph
var diffX = pointer . x - this . drag . pointer . x ;
var diffY = pointer . y - this . drag . pointer . y ;
this . _setTranslation (
this . drag . translation . x + diffX ,
this . drag . translation . y + diffY ) ;
this . _redraw ( ) ;
this . moving = true ;
this . start ( ) ;
if ( this . constants . moveable == true ) {
// move the graph
var diffX = pointer . x - this . drag . pointer . x ;
var diffY = pointer . y - this . drag . pointer . y ;
this . _setTranslation (
this . drag . translation . x + diffX ,
this . drag . translation . y + diffY ) ;
this . _redraw ( ) ;
this . moving = true ;
this . start ( ) ;
}
}
} ;
@ -1065,37 +1070,38 @@ Graph.prototype._onPinch = function (event) {
* @ private
* /
Graph . prototype . _zoom = function ( scale , pointer ) {
var scaleOld = this . _getScale ( ) ;
if ( scale < 0.00001 ) {
scale = 0.00001 ;
}
if ( scale > 10 ) {
scale = 10 ;
}
// + this.frame.canvas.clientHeight / 2
var translation = this . _getTranslation ( ) ;
var scaleFrac = scale / scaleOld ;
var tx = ( 1 - scaleFrac ) * pointer . x + translation . x * scaleFrac ;
var ty = ( 1 - scaleFrac ) * pointer . y + translation . y * scaleFrac ;
if ( this . constants . zoomable == true ) {
var scaleOld = this . _getScale ( ) ;
if ( scale < 0.00001 ) {
scale = 0.00001 ;
}
if ( scale > 10 ) {
scale = 10 ;
}
// + this.frame.canvas.clientHeight / 2
var translation = this . _getTranslation ( ) ;
this . areaCenter = { "x" : this . _canvasToX ( pointer . x ) ,
"y" : this . _canvasToY ( pointer . y ) } ;
var scaleFrac = scale / scaleOld ;
var tx = ( 1 - scaleFrac ) * pointer . x + translation . x * scaleFrac ;
var ty = ( 1 - scaleFrac ) * pointer . y + translation . y * scaleFrac ;
this . _setScale ( scale ) ;
this . _setTranslation ( tx , ty ) ;
this . updateClustersDefault ( ) ;
this . _redraw ( ) ;
this . areaCenter = { "x" : this . _canvasToX ( pointer . x ) ,
"y" : this . _canvasToY ( pointer . y ) } ;
if ( scaleOld < scale ) {
this . emit ( "zoom" , { direction : "+" } ) ;
}
else {
this . emit ( "zoom" , { direction : "-" } ) ;
}
this . _setScale ( scale ) ;
this . _setTranslation ( tx , ty ) ;
this . updateClustersDefault ( ) ;
this . _redraw ( ) ;
if ( scaleOld < scale ) {
this . emit ( "zoom" , { direction : "+" } ) ;
}
else {
this . emit ( "zoom" , { direction : "-" } ) ;
}
return scale ;
return scale ;
}
} ;