quartz-graphics

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Drawing text, newline character, Quartz 2D

I was trying to draw a text in Quartz.For example: 20.0% 1/开发者_Python百科5 I thought I could do something like this:[详细]

2023-03-19 15:26 分类：问答
Sample code or tutorial for drawing square in iphone

Hi i need some help for drawing square in sample iphone app.So if someone can provide me tutorial or source code it wou开发者_StackOverflow中文版ld be great.There\'s plenty of information in the Drawi[详细]

2023-03-19 09:19 分类：问答
Deciphering CGColor

Hi Im trying to get my head around CGColor, Ive been doing a lot of Quartz2d stuff.In the past I\'ve fudged it with [UIColor xColor].CGColor.... but with this new compiler I get crashes when i specify[详细]

2023-03-19 04:40 分类：问答
iPhone iOS: How to dynamically move around/resize images on top of an image background?

I am interested in developing an app that allows a user to do the following: Set a background image Add images on top of the background image[详细]

2023-03-18 15:04 分类：问答
Does Core Animation makes use Quartz2D and OpenGL 3D or they are at same level in OSX architechture?

I have slight confusion in apple\'s documentation. I am not able to understand that in Graphics and Media Layer, Core Animation is above Quartz framework or in the same line?[详细]

2023-03-18 06:13 分类：问答
Core Animation architecture

From the documentation it appears that core animation layer is above OpenGL and Quartz2D. i.e. executing a core animation command should produce a sequence of Quartz2D and OpenGL commands Am I right?[详细]

2023-03-18 04:17 分类：问答
Shape transformation using Quartz (iOS)

I have to program a drawing tool that should display shapes on a plane. These shapes could either be arbitrary shapes, like an elipse or a cube, or some pictu开发者_高级运维re that would be drawn on t[详细]

2023-03-17 17:40 分类：问答
Disassembling CGWindowContextCreate()?

From past few days I am trying to find out the location of CGContextRef on screen and window at Graphics Layer of OS X architecture (mostly in quartz). I think in order to create a window one must pas[详细]

2023-03-16 22:56 分类：问答
How to draw a triangle with QUARTZ 2D?

I\'m developing an iPhone app with 3.1.3 SDK. I\'m trying to draw a triangle with transparent fill an 1px black stroke with this code:[详细]

2023-03-16 20:59 分类：问答
CGPath occupying more memory

This is a very much daunting challenge I have ever faced. Im drawing lines when the finger is moved. The lines are created such that they bypass the imageviewspresnt in my drawingview. I`m using below[详细]

2023-03-16 15:19 分类：问答