Get width and height of Slide

[Certify'em Support]

Hey All -

First post!

I am developing a script that inserts a textbox onto the first slide of a user's existing Google Presentation. I know how to get the slide, and how to insert a text box at a specific location using scaleX and scaleY in a relative transform request, thanks to sample code I've found from Google. It seems if I set scaleX and scaleY to 0, then the text box gets placed in the upper-left corner.

But what I cannot seem to find documented anywhere is how to obtain the dimensions (width and length in px) of the slide itself such that I can specify exactly where to place my textbox. I want it centered on the slide, and 20px from the bottom, ergo I need to make ScaleX = (width/2) and ScaleY = (height - 20). I hope that makes sense.

Any tips or pointers would be helpful. I can also do this directly via the Slides API if needed, via Advanced Services.

Thanks,

Dave

[AliceKeeler Keeler]

Morning Dave

Take a look at my code in this script

https://docs.google.com/presentation/d/1frKgFsJKQEGGlvTFUaNRZIpZVFbstimu28SLS4A1OiE/copy

This rolls dice in a Google Slides and puts a rectangle on the slide to represent the die. 

Please do not share this with those outside the group, I freely give http://alicekeeler.com/diceslides but this one that puts the die on the slide is part of my premium membership benefits. 

[Dave A]

Thanks, Alice. It looks like your code inserts the die at an absolute position:

    var shape = slide.insertShape(SlidesApp.ShapeType.CUBE, 100, 70, 250, 250);

Whereas I want to insert mine at a relative position (i.e. centered on the slide, where the width of the slide can be different depending on how the user has created it). So I first need to know the slide's width so I can place my text box at x value width/2.

[Michael O'Shaughnessy]

Great work Alice!  Keep it up!

I created a SlidesApp solution that generates reports for student's NCE scores.  A place a diamond shape on a graph on the slide that matches their score.  Before I started this project I created 2 little scripts to help me figure out where things are placed.  I would change the page setup, the type of shape as well as the width and height of the shape.  I suggest you just create a blank presentation and add these 2 scripts and start "playing".  For what it is worth... slides uses "points" measurement when it comes to dimensions... So a page set up of 8.5 inches x 11 inches will give a page width of 612 points and a height of 792 points.

function getWidthAndHeight() {

  let pres = SlidesApp.getActivePresentation();

  let pw = pres.getPageWidth();

  let ph = pres.getPageHeight();

  

  let ui = SlidesApp.getUi();

  ui.alert(`The width is ${pw} and the height is ${ph}.`);

}

function insertAshape(){

  let pres = SlidesApp.getActivePresentation();

  let pw = pres.getPageWidth();

  let ph = pres.getPageHeight(); 

  let newSlide = pres.insertSlide(1);

  //inserts a cloud shape in the middle of the slide... no matter what the page setup is...

  newSlide.insertShape(SlidesApp.ShapeType.CLOUD, pw/2-10, ph/2-10, 20, 20);

}

[Certify'em Support]

Thanks, Michael! getPageWidth() and getPageHeight() were exactly what I was looking for! Much appreciated!!

Best,

Dave

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[Yasir Karam]

https://developers.google.com/apps-script/guides/slides/moving-elements

Yasir Karam about.me/karamyasir

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[Certify'em Support]

Awesome, thanks Yasir!!

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[Michael O'Shaughnessy]

Yasir!!  Awesome page!!  I wish I would have found that a long time ago!!!

To view this discussion on the web visit https://groups.google.com/d/msgid/google-apps-script-community/CA%2BGwAgF%2BZ7exu9ucOM3fdDCjX0SM4utgVbxeN8vGPcpqwXs1xg%40mail.gmail.com.