/*
Scale() scales the size of this image to the given dimensions.
columns: The number of columns in the scaled image.
rows: The number of rows in the scaled image
*/
func (this *Image) Scale(columns int64, rows int64) error {
if this.magickWand == nil {
return errors.New("error scale image:magickwand is nil")
}
status := C.MagickScaleImage(this.magickWand, C.ulong(columns), C.ulong(rows))
if status == 0 {
var etype int
descr := C.MagickGetException(this.magickWand, (*C.ExceptionType)(unsafe.Pointer(&etype)))
defer C.MagickRelinquishMemory(unsafe.Pointer(descr))
return errors.New(fmt.Sprintf("error scale image: %s (ExceptionType = %d)", C.GoString(descr), etype))
}
return nil
}
/*
Scale() scales the size of this image to the given dimensions.
columns: The number of columns in the scaled image.
rows: The number of rows in the scaled image
*/
func (this *Image) Scale(columns int64, rows int64) error {
var err error = nil
tran := this.Cat.NewTransaction("GraphicsMagickCmd", "Scale")
defer func() {
tran.SetStatus(err)
tran.Complete()
}()
if this.magickWand == nil {
err = errors.New("error scale image:magickwand is nil")
return err
}
status := C.MagickScaleImage(this.magickWand, C.ulong(columns), C.ulong(rows))
if status == 0 {
var etype int
descr := C.MagickGetException(this.magickWand, (*C.ExceptionType)(unsafe.Pointer(&etype)))
defer C.MagickRelinquishMemory(unsafe.Pointer(descr))
err = errors.New(fmt.Sprintf("error scale image: %s (ExceptionType = %d)", C.GoString(descr), etype))
return err
}
return nil
}
