iOS draw demo, very powerful, very complete, welcome to download.

QuartzDemo
..........\.DS_Store
__MACOSX
........\QuartzDemo
........\..........\._.DS_Store
QuartzDemo\Classes
..........\.......\AppDelegate.h
..........\.......\AppDelegate.m
..........\.......\MainViewController.h
..........\.......\MainViewController.m
..........\.......\QuartzBlendingViewController.h
..........\.......\QuartzBlendingViewController.m
..........\.......\QuartzDashViewController.h
..........\.......\QuartzDashViewController.m
..........\.......\QuartzGradientViewController.h
..........\.......\QuartzGradientViewController.m
..........\.......\QuartzLineViewController.h
..........\.......\QuartzLineViewController.m
..........\.......\QuartzPolyViewController.h
..........\.......\QuartzPolyViewController.m
..........\.......\QuartzView.h
..........\.......\QuartzView.m
..........\.......\QuartzViewController.h
..........\.......\QuartzViewController.m
..........\images
..........\......\Icon-72.png
..........\......\Icon-Small-50.png
..........\......\Icon-Small.png
..........\......\Icon-Small@2x.png
..........\......\Icon.png
..........\......\Icon@2x.png
..........\......\iTunesArtwork
..........\Info.plist
..........\main.m
..........\Prefix.pch
..........\Quartz
..........\......\QuartzBlending.h
..........\......\QuartzBlending.m
..........\......\QuartzClipping.h
..........\......\QuartzClipping.m
..........\......\QuartzCurves.h
..........\......\QuartzCurves.m
..........\......\QuartzImages.h
__MACOSX\QuartzDemo\Quartz
........\..........\......\._QuartzImages.h
QuartzDemo\Quartz\QuartzImages.m
__MACOSX\QuartzDemo\Quartz\._QuartzImages.m
QuartzDemo\Quartz\QuartzLines.h
..........\......\QuartzLines.m
..........\......\QuartzPolygons.h
..........\......\QuartzPolygons.m
..........\......\QuartzRendering.h
..........\......\QuartzRendering.m
..........\QuartzDemo.xcodeproj
..........\....................\project.pbxproj
..........\....................\project.xcworkspace
..........\....................\...................\contents.xcworkspacedata
..........\....................\...................\xcuserdata
..........\....................\...................\..........\app_store.xcuserdatad
..........\....................\...................\..........\.....................\UserInterfaceState.xcuserstate
..........\....................\...................\..........\zhcw.xcuserdatad
..........\....................\...................\..........\................\UserInterfaceState.xcuserstate
..........\....................\xcuserdata
..........\....................\..........\app_store.xcuserdatad
..........\....................\..........\.....................\xcdebugger
..........\....................\..........\.....................\..........\Breakpoints.xcbkptlist
..........\....................\..........\.....................\xcschemes
..........\....................\..........\.....................\.........\QuartzDemo.xcscheme
..........\....................\..........\.....................\.........\xcschememanagement.plist
..........\....................\..........\zhcw.xcuserdatad
..........\....................\..........\................\xcschemes
..........\....................\..........\................\.........\QuartzDemo.xcscheme
..........\....................\..........\................\.........\xcschememanagement.plist
..........\ReadMe.txt
..........\Resources
..........\.........\Demo.png
..........\.........\en.lproj
..........\.........\........\BlendView.xib
..........\.........\........\DashView.xib
..........\.........\........\DemoView.xib
..........\.........\........\GradientView.xib
..........\.........\........\LineView.xib
..........\.........\........\MainWindow.xib
..........\.........\........\PolyView.xib
..........\.........\........\Quartz.pdf
..........\.........\Ship.png

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