On four chapters:
Layer Tree
Layer's Homestay Map
Layer geometry
Layer Visual effects
This essay mainly describes the layer transformations.
Transform:
A cgaffinetransform that rotates, places, or
ClassicAlgorithmResearch Series: 10. A thorough understanding of Fourier transform algorithm from start to end
Author: July, dznlong February 20, 2011
Recommended reading:The scientist and engineer's Guide to Digital Signal Processing, By Steven
"Transformation matrix" uses "affine transformations affine transformation" properties:
The "affinine transform" refers to the coordinate point that changes the relative distance in the space while the coordinate points are in the same line (surface.
CoreGraphics.hCgaffinetransform rotation = cgaffinetransformmakerotation (m_pi_2);? [xxx settransform:rotation];? Oh just so simple two lines of code can be realized!By the way to record some constants, later use!#define M_e 2.718281828459045
CoreGraphics.hCgaffinetransform rotation = cgaffinetransformmakerotation (m_pi_2);? [xxx settransform:rotation];? Oh just so simple two lines of code can be realized!By the way to record some constants, later use!#define M_e 2.718281828459045
CoreGraphics.hCgaffinetransform rotation = cgaffinetransformmakerotation (m_pi_2);? [XXX settransform:rotation];Record some constants and use them later!#define M_e 2.71828182845904523536028747135266250 e? #define m_log2e 1.44269504088
Use CSS3 & jQuery to create an apple TV poster parallax effect, and use a small icon written in css3
Implement it with CSS and jQuery, and try to look the same as the original effect.
Final
In this tutorial, I will use CSS, HTML, and jQuery to
The two attributes of the layer specify the transformation matrix: transform.And sublayertransformAttribute.
Layer TransformAttribute of the specified MatrixAnchorpointProperties apply to layers and layers.
Layer sublayertransformThe matrix
On UIView, we can use Cgaffinetransform to do the View: Pan (translation), rotate (Rotation), scale, tilt (Invert) operations, but these operations are not dynamic stereo effects, This can only be referred to as a two-dimensional deformation. In the
FFT is a high-speed algorithm for discrete Fourier transform, which can transform a signalto the frequency domain. Some signals are very unsightly in the time domain, but asWhen the fruit is transformed into the frequency domain, it is very easy to
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