Hat's off to an amazing library. I was wondering if anyone knows of a better way to center text than our current method.

We are using pchart to let users dynamically create various types of charts. Therefore, we can't hardcode the x,y coordiantes of the chart title(as one example) because--although we know how wide the image will be, we don't know how long the text title will be (until some user types it in).

Our method to center a text field
-- first draw it off the canvas (at y = -100). The only reason we do this is because we need to examine the array returned by drawText() to discover the text field's rendered width and height (which we can then use later to center the title in the displayed canvas)
-- Once we know this, the width and height and can use that to center the text field in the actual image (as opposed to at y = -100)

This, in effect, means we must draw the text field twice. Once outside the displayed area to get the width and height.

The second time, we center it inside the displayed area ie ($width_of_image/2 - $width_of_rendered_text/2)

I was wondering if anyone knows of a better way?

Hi,

Can't you use the TEXT_ALIGN_MIDDLEMIDDLE (or TOPMIDDLE / BOTTOMMIDDLE) parameter of the drawText() function? If we assume that your image is size is ($Width,$Height) you can do :



Kind regards,
JD.