prevent null value on scaling mesh
add scale and rotate mesh
add add alert box
add missed event on browse button
new option: change mesh and slice colors
add bootstrap colorpicker
export slices images as ZIP file
add FileSaver library
add jszip library
auto slice done!
cleanning
more visible button
2D viewer in new window
2D Viewer done!
add viewer 2d popup
do not load unused triangulation algorithm
add mesh weight and cost
add missing one point on plane case with intersection
more accurate test for equality
fix layers count
set layer height editable
fix clipping plane whene build volume size change
useless removing shapes
fix z plane position on build volume unit change
glue object on plate when build volume resize
fix buildVolume resize
remove github link target
Update README.md
add example STL files
add line to polygon precision
add more triangulation algorithm
new ui
better triangulation algorithm with earcut
