XPolygonRegion(3) XLIB FUNCTIONS XPolygonRegion(3)NAME
XPolygonRegion, XClipBox - generate regions
SYNTAX
Region XPolygonRegion(XPoint points[], int n, int fill_rule);
int XClipBox(Region r, XRectangle *rect_return);
ARGUMENTS
fill_rule Specifies the fill-rule you want to set for the specified GC. You can pass EvenOddRule or WindingRule.
n Specifies the number of points in the polygon.
points Specifies an array of points.
r Specifies the region.
rect_return
Returns the smallest enclosing rectangle.
DESCRIPTION
The XPolygonRegion function returns a region for the polygon defined by the points array. For an explanation of fill_rule, see XCreateGC.
The XClipBox function returns the smallest rectangle enclosing the specified region.
SEE ALSO XCreateGC(3), XDrawPoint(3), XDrawRectangle(3)
Xlib - C Language X Interface
X Version 11 libX11 1.5.0 XPolygonRegion(3)
Check Out this Related Man Page
XUnionRectWithRegion() XUnionRectWithRegion()
Name
XUnionRectWithRegion - add a rectangle to a region.
Synopsis
XUnionRectWithRegion(rectangle, src_region, dest_region_return)
XRectangle *rectangle;
Region src_region;
Region dest_region_return;
Arguments
rectangle Specifies the rectangle to add to the region.
src_region
Specifies the source region to be used.
dest_region_return
Specifies the resulting region. May be the same as src_region.
Description
XUnionRectWithRegion() computes the destination region from a union of the specified rectangle and the specified source region. The source
and destination regions may be the same.
One common application of this function is to simplify the combining of the rectangles specified in contiguous Expose events into a
clip_mask in the GC, thus restricting the redrawn areas to the exposed rectangles. Use XUnionRectWithRegion() to combine the rectangle in
each Expose event into a region, then call XSetRegion(). XSetRegion() sets the clip_mask in a GC to the region. In this case, src_region
and dest_region_return would be the same region.
If src_region and dest_region_return are not the same region, src_region is copied to dest_region_return before the rectangle is added to
dest_region_return.
For more information on regions, see Volume One, Chapter 6, Drawing Graphics and Text.
Structures
typedef struct {
short x, y;
unsigned short width, height;
} XRectangle;
Region is a pointer to an opaque data type.
See Also
XClipBox(), XDestroyRegion(), XEmptyRegion(), XEqualRegion(), XIntersectRegion(), XOffsetRegion(), XPointInRegion(), XPolygonRegion(),
XRectInRegion(), XSetRegion(), XShrinkRegion(), XSubtractRegion(), XUnionRegion(), XXorRegion().
Xlib - Resource Manager XUnionRectWithRegion()
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Hi,
Just trying to get to grips with sed and awk for some reporting for work and I need some assistance:
I have a file that lists policy names on the first line and then on the second line whether the policy is active or not.
Policy Name: Policy1
Active: yes
Policy... (8 Replies)
version info :
vi availabe with RHEL 5.4
I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this?
Note:
The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello,
I couldn't find an actual introduction thread, so I decided to just put this here.
I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Hi guys...
The first active code line in AudioScope.sh is set -u .
This causes a complete exit if a variable is used/found but has not been allocated at the start of the program.
However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)