我知道,有一个用于“改变”时触发的轨道控制事件监听器,但我需要让监听器更具体,例如缩放,平移和移动。像这样已经实现的东西了吗?
正在寻找类似的东西:
var controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'onpan', myPanFunction );
controls.addEventListener( 'onzoom', myZoomFunction );
controls.addEventListener( 'onmove', myMoveFunction );
或类似的东西:
var controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'change', myFunction(event){
switch (event){
case pan:
//do something
break;
case zoom:
//do something
break;
case move:
//do something
break;
default:
break;
}
});
我希望它清楚我想要实现的目标。
答案 0 :(得分:0)
好吧,我只听了mousedown事件与mousemove的结合就解决了它。这可能并非在所有情况下都可行,但对我而言却有效:
canvas = document.getElementById("canvas")
canvas.addEventListener("mousedown", function(e){
// on rotate
if(e.button === 0 && currentTutorialPage === 0 && tutorial){
canvas.onmousemove = function(e) {
// do something
}
}
// on zoom
else if(e.button === 1 && currentTutorialPage === 1){
canvas.onmousemove = function(e) {
// do something
}
}
// on pan
else if(e.button === 2 && currentTutorialPage === 2){
canvas.onmousemove = function(e) {
// do something
}
}
});
// remove eventListener
canvas.addEventListener("mouseup", function(e){
canvas.onmousemove = null
});