Check if there is preview slice image when doing redraw

This commit is contained in:
peteruithoven 2014-01-17 16:29:34 +01:00
parent 6dafeafa37
commit 679cf9b5a5
1 changed files with 11 additions and 4 deletions

View File

@ -26,7 +26,7 @@ var prevRedrawTime = new Date().getTime();
var redrawInterval = 1000 / 30; // ms
function initPreviewRendering() {
console.log("f:initPreviewRendering()");
//console.log("f:initPreviewRendering()");
$preview = $("#preview");
preview = $preview[0];
@ -89,6 +89,7 @@ var highlight = true; //highlight bottom, middle and top layers
var linesRaw = "";
var debug_redrawSimplification = 6;
function redrawPreview(redrawLess) {
//console.log("PreviewRendering:redrawPreview");
if (redrawLess == undefined) redrawLess = false;
if (_points.length < 2) {
@ -168,6 +169,7 @@ function redrawPreview(redrawLess) {
}
function renderToImageDataPreview() {
//console.log("PreviewRendering:renderToImageDataPreview");
if (_points.length < 2) return;
//*
@ -236,9 +238,10 @@ function renderToImageDataPreview() {
previewCtx.globalAlpha = globalAlpha;
}
// called by the move up/down or twist left/right buttons
// called by the move up/down, twist left/right or new buttons
// it is assumed that the preview has been rendered to an Image object, which will be used to draw the preview with (much better performance)
function redrawRenderedPreview(redrawLess) {
//console.log("PreviewRendering:redrawRenderedPreview");
if (redrawLess == undefined) redrawLess = false;
// console.log("f:redrawRenderedPreview()");
@ -248,7 +251,10 @@ function redrawRenderedPreview(redrawLess) {
var y = 0;
var r = 0;
// check if there is preview image data that we can use for the layers
if(!doodleImageCapture.src || doodleImageCapture.src == "") return;
for(var i = 0; i < numLayers; i++) {
var verticalScaleFactor = scaleFunction(i / maxNumLayers);
@ -271,7 +277,7 @@ function redrawRenderedPreview(redrawLess) {
previewCtx.scale(verticalScaleFactor, scaleY * verticalScaleFactor);
previewCtx.rotate(r);
previewCtx.translate(-layerCX,-layerCY);
previewCtx.drawImage(doodleImageCapture, 0, 0);
y -= yStep;
@ -297,6 +303,7 @@ function centeredAndScaledDoodlePoint(p) {
var updatePrevX = -1;
var updatePrevY = -1;
function updatePreview(_x, _y, redrawLess) {
//console.log("PreviewRendering:updatePreview");
if (redrawLess == undefined) redrawLess = false;
redrawLess = false;