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Zoom in on a point (using scale and translate)
...-(zoomPointX * scalechange);
offsetY = -(zoomPointY * scalechange);
So really you can just pan over down and to the right when you zoom in, by a factor of how much you zoomed in, relative to the point you zoomed at.
shar...
vertical & horizontal lines in matplotlib
...
matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.axhline <- documentation. You should edit your answer to include this link
– tacaswell
Jun 5 '13 at 4:06
...
Is it safe to push_back an element from the same vector?
If the second push_back causes a reallocation, the reference to the first integer in the vector will no longer be valid. So this isn't safe?
...
What is the meaning of “__attribute__((packed, aligned(4))) ”
...gned(1))) sSampleStruct;
so the above specified gcc attribute does not allow the structure padding. so the size will be 8 bytes.
If you wish to do the same for all the structures, simply we can push the alignment value to stack using #pragma
#pragma pack(push, 1)
//Structure 1
......
//Stru...
What static analysis tools are available for C#? [closed]
...timation
Dependency Graph
Dependency Matrix
Code Diff capabilities
NDepend.API that lets write you own static analysis tool. With NDepend.APi we even developed a tool to detect code duplicate (details in this blog post: An Original Algorithm to Find .NET Code Duplicate).
...
Checking images for similarity with OpenCV
...he same image was passed twice, 0% would be returned if the images were totally different.
4 Answers
...
How to subtract X days from a date using Java calendar?
... As of Java 8 consider using java.time docs.oracle.com/javase/8/docs/api/java/time/…
– toidiu
Nov 17 '15 at 18:53
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...languages or characters.
On modern servers, this performance boost will be all but negligible. It was devised in a time when servers had a tiny fraction of the CPU performance of today's computers.
Benefits of utf8mb4_unicode_ci over utf8mb4_general_ci
utf8mb4_unicode_ci, which uses the Unicode r...
How do I filter ForeignKey choices in a Django ModelForm?
... can populate the validation data by making using the super(...).__init__ call in your overridden method. If you are making several of these queryset changes its a lot more elegant to package them by overriding the init method.
– michael
Aug 7 '09 at 4:53
...
java get file size efficiently
...97.044
URL sum: 95534, per Iteration: 382.136
File must be caching the calls to the filesystem, while channels and URL have some overhead.
Code:
import java.io.*;
import java.net.*;
import java.util.*;
public enum FileSizeBench {
LENGTH {
@Override
public long getResult() ...