Programming Articles - Page 1131 of 3363

imagefilledarc() is an inbuilt function in PHP that is used to draw a partial arc and fill it.Syntaxbool imagefilledarc($image, $cx, $cy, $width, $height, $start, $end, $color, $style)Parametersimagefilledarc() takes nine parameters: $image, $cx, $cy, $width, $height, $start, $end, $color, and $style.$image − It is returned by the image creation function imagecreatetruecolor(). This function is used to create the size of the image.$cx − Sets the x-coordinate of the center.$cy − Sets the y-coordinate of the center.$width − Sets the arc width.$height − Sets the arc height.$start − Start angle in degrees.$end − Arc end angle, in degrees. 00 is located at ... Read More

imageellipse() is an inbuilt function in PHP that is used to draw an ellipse. It returns True on success and False on failure.SyntaxBool imageellipse($image, $cx, $cy, $width, $height, $color)Parametersimageellipse() takes six different paramters: $image, $cx, $cy, $width, $height, $color.$image − Creates the size of the image. It is returned by one of the image creation functions, such as imagecreatetruecolor().$cx − Sets the x-coordinate of the center.$cy − Sets the y-coordinate of the center.$width − Sets the ellipse width.$height − Sets the ellipse height.$color − Sets the color of ellipse. A color identifier created by imagecolorallocate() function.Return ValuesIt returns True on ... Read More

imagecreatetruecolor( ) is an inbuilt function in PHP that is used to create a new true-color image. It returns a blank image of the given size.Syntaxresource imagecreatetruecolor($width, $height)Parametersimagecreatetruecolor() takes two paramters, $width and $height.$width − The $width parameter is used to set the image width.$height − The $height parameter is used to set the image height.Return Valuesimagecreatetruecolor() returns an image resource identifier on success or it returns false on errors.Example 1OutputExample 2 − Below PHP code will create a new GD image streamOutput

imagecrop() is an inbuilt function in PHP that is used to crop an image to the given rectangle. It crops the image from the given rectangle area and returns the output image.The given image is not modified.Syntaxresource imagecrop ($image, $rect)Parametersimagecrop() takes two parameters, $image and $rect.$image − It is the parameter returned by the image creation functions, such as imagecreatetruecolor(). It is used to create the size of an image.$rect − The cropping rectangle is an array with keys X, Y, width, and height.Return Valuesimagecrop() returns the cropped image resource on success or it returns false on failure.ExampleOutputInput image before ... Read More

imagecropauto() is an inbuilt function in PHP that is used to crop an image automatically using one of the available modes.Syntaxresource imagecropauto(resource $image, int $mode, float $threshold, int $color)Parametersimagecropauto() takes four different parameters − $image, $mode, $threshold and $color.$image − Specifies the image resource to be cropped.$mode − It is an optional parameter and it is used to specify an integer corresponding to a crop mode, below is the list of crop modes.IMG_CROP_DEFAULT − The IMG_CROP_DEFAULT works just like the IMG_CROP_TRANSPARENT mode.IMG_CROP_TRANSPARENT − This mode is used to crop out a transparent background.IMG_CROP_BLACK − This mode is used to crop ... Read More

imagedestroy() is an inbuilt PHP function that is used to destroy an image and free any memory associated with the image.Syntaxbool imagedestroy(resource $image)Parametersimagedestroy() takes only one parameter, $image. It holds the name of an image.Return Valuesimagedestroy() returns true on success and failure on false.Example 1 − Destroying an image after loading it.OutputNote − By using imagedestroy() function, we have destroyed the $cropped variable and therefore, it can no longer be accessed.Explanation − In Example1, imagecreatefrompng() loads an image from the local drive folder and crops a part of the image from the given image using imagecropauto() function. After cropping, imagedestroy() ... Read More

In PHP, imagecreatefromwbmp() is an inbuilt function that is used to create a new image from a WBMP file or URL. imagecreatefromwbmp() returns an image identifier representing the image obtained from the given filename. We can use imagecreatefromwbmp() whenever we want to edit the images after loading them from a WBMP file. Using the imagewbmp() function, an image can be converted into WBMP.Syntaxresource imagecreatefromwbmp(string $filename)Parametersimagecreatefromwbmp() takes only one parameter, $filename. It holds the name of the image.Return Valuesimagecreatefromwbmp() returns an image resource identifier on success, and it gives an error on false.Example 1

In PHP, imagecreatefrompng() is an inbuilt function that is used to create a new image from a PNG file or URL. imagecreatefrompng() returns an image identifier representing the image obtained from the given filename.Syntaxresource imagecreatefrompng(string $filename)Parametersimagecreatefrompng() takes only one parameter, $filename. This parameter holds the name of the image or path to the PNG image.Return Valuesimagecreatefrompng() returns an image resource identifier on success, and it gives an error on false.Example 1 − Showing the loaded PNG image in the browserOutputExample 2 − Loaded and saving PNG image in the local drive pathOutputExplanation − In Example 2, a png image is ... Read More

imagecreatefromjpeg() is an inbuilt function in PHP that is used to create a new image from a JPEG file. It returns an image identifier representing the image obtained from the given filename.Syntaxresource imagecreatefromjpeg(string $filename)Parametersimagecreatefromjpeg() uses only one parameter, $filename, that holds the name of the image or path to the JPEG image.Return Valuesimagecreatefromjpeg() returns an image resource identifier on success, and it gives an error on false.Example 1OutputExample 2Input ImageOutput ImageExplanation − In Example 2, we loaded the jpeg image from the local path using the imagecreatefromjpeg() function. Thereafter, we used the imageflip() function to flip the image.Example 3 − ... Read More

To print string vectors vertically in R, we can follow the below steps −First of all, create a vector.Then, use cat function to print the vector vertically.Example 1 Let's create a vector as shown below − Live DemoAlphabets