yep, I never thought I would use that formula but in polar case, I need to use. Thanks for the help and information. I have found a different answer also. Here I learned that you can directly use as vectors;
Code:
set terminal png large size 1920,1200
set output '003A98B70A10_coverage.png'
set grid
set origin 1724012,7451336
set isosample 150
set palette defined (-100 "red", -95 "yellow", -85 "green")
plot "003A98B70A10.log" using 1:2:(1724012-$1):(7450200-$2):3 with vectors palette
which is similar to your logic, subtracting the values from the origin.
Hi again. Sorry if it seems like I'm spamming the boards a bit, but I figured I might as well ask all the questions I need answers to at once, and hopefully at least get some.
I have installed Solaris 10 on a server. The default text editors are there (vi, ex, ed, maybe others, I know emacs is... (4 Replies)
Hi,
I am trying to make a plot of an ASCII file using GNUplot, but I keep getting error msg:
for example plot filename.txt
It says that (.txt ) is not identified ... I tried to write it without the .txt part, but I also get the error msg.
Any idea why? :confused: (1 Reply)
Hi I am trying to fit my histogram data with a gaussian model and am encountering two problems:
1. I can't seem to fit the histogram data with a model
fit y(x) 'bin.txt' using 2:xtic(1) via a,b,c (error: need 2 to 7 using specs)
2. Even when I manually guess the correct parameters for my fit and... (1 Reply)
Dear all,
I have numerous dat files (a.dat, b.dat...) containing 500 numeric values each. I would like to count them, based on their range and obtain a histogram or a counter.
INPUT:
a.dat
1.3
2.16
0.34
......
b.dat
1.54
0.94
3.13
.....
... (2 Replies)
I have a single file that looks like this:
1.62816
1.62816
0.86941
0.86941
0.731465
0.731465
1.03174
1.03174
0.769444
0.769444
0.981181
0.981181
1.14681
1.14681
1.00511
1.00511
1.20385
1.20385 (2 Replies)
Hi All,
I am new to Grace and would like to plot histograms. My input files have one column for frequencies and another column for distances, for example:
1 2.6
4 2.7
5 2.8
2 3.9
2 4.0
4 4.7
4 4.8
4 4.9
...
I want to plot a histogram ranging from 0 to 10 with... (0 Replies)
I am new to R and would like to calculate the percentage frequency distribution of h1 and h2. How can I combine h1 and h2 in one plot? I tried the following code.
h1=c(5.18,4.61,3.30,7.58,3.00,3.80,1.95,2.67,2.77,2.73,2.33,3.36,3.50,1.91,4.25,3.87,2.86,2.26,2.00,3.86,3.33,3.59,4.00)... (0 Replies)
Hi,
I have 2 files with similar structure - reference and test that I would like to BIN both and generate the comparison.
input files structure is:
a 3
b 10
c 3
d 7
e 1
f 4
g 9
h 6
I would like the output to be (lets say both reference and test are the file above - no diff)
BIN ... (3 Replies)
Discussion started by: yan1
3 Replies
LEARN ABOUT PHP
imagecolorallocatealpha
IMAGECOLORALLOCATEALPHA(3) 1 IMAGECOLORALLOCATEALPHA(3)imagecolorallocatealpha - Allocate a color for an imageSYNOPSIS
int imagecolorallocatealpha (resource $image, int $red, int $green, int $blue, int $alpha)
DESCRIPTION imagecolorallocatealpha(3) behaves identically to imagecolorallocate(3) with the addition of the transparency parameter $alpha.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $red
-Value of red component.
o $green
-Value of green component.
o $blue
-Value of blue component.
o $alpha
- A value between 0 and 127. 0 indicates completely opaque while 127 indicates completely transparent.
The $red, $green and $blue parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF.
RETURN VALUES
A color identifier or FALSE if the allocation failed.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.1.3 | |
| | |
| | Returns FALSE if the allocation failed. Previ- |
| | ously -1 was returned. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
Example of using imagecolorallocatealpha(3)
<?php
$size = 300;
$image=imagecreatetruecolor($size, $size);
// something to get a white background with black border
$back = imagecolorallocate($image, 255, 255, 255);
$border = imagecolorallocate($image, 0, 0, 0);
imagefilledrectangle($image, 0, 0, $size - 1, $size - 1, $back);
imagerectangle($image, 0, 0, $size - 1, $size - 1, $border);
$yellow_x = 100;
$yellow_y = 75;
$red_x = 120;
$red_y = 165;
$blue_x = 187;
$blue_y = 125;
$radius = 150;
// allocate colors with alpha values
$yellow = imagecolorallocatealpha($image, 255, 255, 0, 75);
$red = imagecolorallocatealpha($image, 255, 0, 0, 75);
$blue = imagecolorallocatealpha($image, 0, 0, 255, 75);
// drawing 3 overlapped circle
imagefilledellipse($image, $yellow_x, $yellow_y, $radius, $radius, $yellow);
imagefilledellipse($image, $red_x, $red_y, $radius, $radius, $red);
imagefilledellipse($image, $blue_x, $blue_y, $radius, $radius, $blue);
// don't forget to output a correct header!
header('Content-Type: image/png');
// and finally, output the result
imagepng($image);
imagedestroy($image);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Example of using imagecolorallocateal-
pha()
NOTES
Note
This function requires GD 2.0.1 or later (2.0.28 or later is recommended).
SEE ALSO imagecolorallocate(3), imagecolordeallocate(3).
PHP Documentation Group IMAGECOLORALLOCATEALPHA(3)