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gnuplot: map view with black and white for 0/1 in the 3rd column
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IMAGERECTANGLE(3) 1 IMAGERECTANGLE(3) imagerectangle - Draw a rectangle SYNOPSIS
bool imagerectangle (resource $image, int $x1, int $y1, int $x2, int $y2, int $color) DESCRIPTION
imagerectangle(3) creates a rectangle starting at the specified coordinates. PARAMETERS
o $ image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3). o $x1 - Upper left x coordinate. o $y1 - Upper left y coordinate 0, 0 is the top left corner of the image. o $x2 - Bottom right x coordinate. o $y2 - Bottom right y coordinate. o $color - A color identifier created with imagecolorallocate(3). RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Simple imagerectangle(3) example <?php // Create a 200 x 200 image $canvas = imagecreatetruecolor(200, 200); // Allocate colors $pink = imagecolorallocate($canvas, 255, 105, 180); $white = imagecolorallocate($canvas, 255, 255, 255); $green = imagecolorallocate($canvas, 132, 135, 28); // Draw three rectangles each with its own color imagerectangle($canvas, 50, 50, 150, 150, $pink); imagerectangle($canvas, 45, 60, 120, 100, $white); imagerectangle($canvas, 100, 120, 75, 160, $green); // Output and free from memory header('Content-Type: image/jpeg'); imagejpeg($canvas); imagedestroy($canvas); ?> The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Simple imagerectangle() example PHP Documentation Group IMAGERECTANGLE(3)
