Sketchup Web Exporter

Phil Rader AIA

Is there a way to control the camera position in Sketchup's beta release of Web Exporter?

I've tried this but when I use it on my model it automatically pulls back the camera to a distance away from the model which is much farther than I would like. Is there a way to control exactly where the camera is positioned.

It appears that it is zooming out to be able to cover the extents of the model but I would like to fill the frame with them model.

any thoughts?

Thanks

Phil

Jim

Phil,

First thought would be to add this line after line 822 in Plugins/swivelButtonPlugin/swivelButton.rb


Sketchup.active_model.active_view.zoom_extents

Phil Rader AIA

Thanks Jim for your reply.

I'll upload a video showing what is happening and that should explain it better than my words.

here is a movie that explains what is happening.

Jim

Phil,

I understood what you meant. There is no control over it from the User Interface. Were you asking for a modified version of the plugin that has such an option?

Phil Rader AIA

see my post here:

http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=10855

juvard

I do have exact the same issue and when I added the code it works fine. thank you for the code.

Pushtone

I'm experiencing the same problem as depicted in Phil Rader's video.
Adding this line of code did not work but it did change the behavior slightly.

After adding Jim's line of code instead of zooming out as soon as the SWE window opens it now zooms out as soon as I click the "CREATE" button.

Are there modifications to that line of code that will make it not zoom to extents?
Something like: .zoom_extents_NO

thanks
Dave

@jim said:

Phil,

First thought would be to add this line after line 822 in Plugins/swivelButtonPlugin/swivelButton.rb


> Sketchup.active_model.active_view.zoom_extents

richhinton

Adding the code above to line 822 of swivelButton.rb fixes the preview image:

Sketchup.active_model.active_view.zoom_extents

Then modify line 572 of swivelButton.rb from:

  standoff_distance = getStandoffDistance() * 1.1;

to

  standoff_distance = targetNow.distance eyeNow

Add the following line above line 583 so you end up with:

  standoff_eyepoint = eyeNow;
  centerpoint.z = standoff_eyepoint.z;

Comment out lines 656 to 663:

# 	bb=Sketchup.active_model.bounds
# pmax = bb.max
#	pmin = bb.min
#	zdiff = bb.max[2]-bb.min[2]
#	pcenter = bb.center
#	targetNow = pcenter
#	up = Geom;;Vector3d.new(0.0,0.0,1.3*zdiff)
#	upTarget = pcenter + up

The code before tried to fit the entire model into the view by getting the bounding box of the active model and drawing a circle around it, then panning the camera around that circle.

My fix, simply draws a circle around the model from the current cameras position and then pans around that circle.

tridem

Hi, I also would like the web exporter didn't zoom to extents the model, I was trying to change the script but seems the line reference of richhinton are wrong anyone had success with it? can you share the whole modified .rb file?

Gaieus

Hi Luca,

What if you draw a big sphere all around the model (so it fits inside all extent) and paint this sphere with a completely transparent png file (and also make it cast no shadow at all)? This could fool the script (hopefully) as it would always zoom extents of the surrounding sphere (which would be an even zooming of course).

Here is a model whose scene animation I made the same way (so not exactly the same case but similar solution). I then deleted the sphere (there - as the scenes will retain the camera position - obviously you should not delete your sphere).
http://sketchup.google.com/3dwarehouse/details?mid=ed6358317ca6c63cf316679995e7e4d8

tridem

Thanks Gai, but I've the opposite problem
senza titolo1.jpg

Gaieus

Is there anything else in that model? Anything on a hidden layer? Also, where is the origin?

Sorry but I have never used this plugin so I am not sure how to trouble shoot it - especially with scripting. I can only approach these things from some practical, SU related point of view.

tridem

No, there are no other objects and it's centered with the origin, the fact is that the plugin forces a resize to fit the scene (that could be a reasonable choice to show your model) but I'd prefer to keep the current view because I want to show only the central part of the scene

Gaieus

And what if you make the images this way - just big resolution export enough - and crop them to get what you want?

(Sorry gain that I can only offer these lame workarounds as I know as much about ruby scripting as about woodworking)

TIG

The swivelButton.rb code is set to zoom extents and then x1.1 so there's some white space around the object etc

<span class="syntaxdefault">def SwivelButton</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">zoomInitial</span><span class="syntaxkeyword">()<br /></span><span class="syntaxdefault">  Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">zoom_extents<br />  eyeNow    </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">eye<br />  targetNow </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">target<br />  upvec     </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">up<br />  </span><span class="syntaxcomment"># draw the circle at our elevation (z coord)<br /></span><span class="syntaxdefault">  bb </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">bounds</span><span class="syntaxkeyword">;<br /></span><span class="syntaxdefault">  bbcenter </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> bb</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">center</span><span class="syntaxkeyword">;<br /></span><span class="syntaxdefault">  <br />  centerpoint </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> targetNow</span><span class="syntaxkeyword">;<br /><br /></span><span class="syntaxdefault">  viewvec </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> eyeNow </span><span class="syntaxkeyword">-</span><span class="syntaxdefault"> targetNow<br />  unitviewvec </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> viewvec</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">normalize</span><span class="syntaxkeyword">;<br /><br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment"># add a boundary by backing up a bit more,<br /></span><span class="syntaxdefault">  standoff_distance </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> getStandoffDistance</span><span class="syntaxkeyword">()</span><span class="syntaxdefault"> </span><span class="syntaxkeyword">*</span><span class="syntaxdefault"> 1.1</span><span class="syntaxkeyword">;</span><span class="syntaxdefault">  <br />  <br />  </span><span class="syntaxcomment"># the eye will lie along the current view line so it is <br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment"># standoff_distance away from the target<br /></span><span class="syntaxdefault">  standoff_vec </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> unitviewvec</span><span class="syntaxkeyword">;<br /></span><span class="syntaxdefault">  standoff_vec</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">length </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> standoff_distance</span><span class="syntaxkeyword">;<br /></span><span class="syntaxdefault">  standoff_eyepoint </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> bbcenter </span><span class="syntaxkeyword">+</span><span class="syntaxdefault"> standoff_vec</span><span class="syntaxkeyword">;<br /><br /></span><span class="syntaxdefault">  c </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">Camera</span><span class="syntaxkeyword">.new<br /></span><span class="syntaxdefault">  <br />  c</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">set</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">standoff_eyepoint</span><span class="syntaxkeyword">,</span><span class="syntaxdefault">bbcenter</span><span class="syntaxkeyword">,</span><span class="syntaxdefault">upvec</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment"># now stick this camera on our view<br /></span><span class="syntaxdefault">  Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> c<br />end</span>

You can modify this method thus

<span class="syntaxdefault">def SwivelButton</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">zoomInitial</span><span class="syntaxkeyword">()<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###Sketchup.active_model.active_view.zoom_extents<br /></span><span class="syntaxdefault">  eyeNow    </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">eye<br />  targetNow </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> ORIGIN </span><span class="syntaxcomment">###Sketchup.active_model.active_view.camera.target<br /></span><span class="syntaxdefault">  upvec     </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">up<br />  </span><span class="syntaxcomment"># draw the circle at our elevation (z coord)<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###bb = Sketchup.active_model.bounds;<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###bbcenter = bb.center;<br /></span><span class="syntaxdefault">  <br />  </span><span class="syntaxcomment">###centerpoint = targetNow;<br /><br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###viewvec = eyeNow - targetNow<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###unitviewvec = viewvec.normalize;<br /><br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment"># add a boundary by backing up a bit more,<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###standoff_distance = getStandoffDistance() * 1.1;  <br /></span><span class="syntaxdefault">  <br />  </span><span class="syntaxcomment"># the eye will lie along the current view line so it is <br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment"># standoff_distance away from the target<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###standoff_vec = unitviewvec;<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###standoff_vec.length = standoff_distance;<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment">###standoff_eyepoint = eyeNow ###bbcenter + standoff_vec;<br /><br /></span><span class="syntaxdefault">  c </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">Camera</span><span class="syntaxkeyword">.new<br /></span><span class="syntaxdefault">  <br />  c</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">set</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">eyeNow</span><span class="syntaxkeyword">,</span><span class="syntaxdefault">targetNow</span><span class="syntaxkeyword">,</span><span class="syntaxdefault">upvec</span><span class="syntaxkeyword">)</span><span class="syntaxcomment">###c.set(standoff_eyepoint,bbcenter,upvec)<br /></span><span class="syntaxdefault">  </span><span class="syntaxcomment"># now stick this camera on our view<br /></span><span class="syntaxdefault">  Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_view</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">camera </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> c<br />end</span>

This sets the target as the ORIGIN, keeps the current 'eye' and adds NO white space.
Untried... but you can see where it's going...

tridem

no, it seems this affects only the preview...then, when hit "create" it still zooms out to fit the scene. I believe you should modify the way it creates a circle which is the base of cameras path. As I understood, it takes the dimensions of the model's bounding box to compute how far the camera is from the model and the radius of that construction circle...maybe could be enough using the bounding box of a selection instead of the entire model and all other methods follow... maybe! I'm not able to read and understand a script

TIG

OK...
That's because I only showed how to correct the start frame...
To change the rest of the frames there's more stuff to change...
This is a dirty hack leaving lots of things making arrays etc that are then not used!
Change line #634 to read something like
pt=Sketchup.active_model.active_view.camera.eye;up=Sketchup.active_model.active_view.camera.up;tr=Geom::Transformation.rotation(ORIGIN,up,360.degrees/numseg);pnts=[pt];numseg-1.times{pnts<<pt.transform!(tr);};return pnts
[NB: This is untested]...
The whole thing could be rewritten a lot simpler to allow the user to determine the extents of the view etc... My nudgeOrbit.rb could be the basis of this as that simply rotates the camera around the target by given angular increments... You then combine that camera with exporting the image...

driven

Anyone still interested in this?

low res gif ...NEED to Open in new tab, not continuous on Safari...
I've been hacking the code for use on mac and worked out the bits needed to change the default zooming

the gif is b+w and jumpy [down-sized for upload to the forum], but shows the base disc is filling the frame.

The web animation is smooth and full color, but we can't post those here...
I'll put some test up elsewhere if anyone wants.

I need to figure out a couple more things but those bits should work on PC's, if anyones interested.

john

Rich O Brien

That .gif animates once then stops. Can you upload one that runs 'forever'?

It is of interest though

driven

rich,

how big a file can I upload? and have you ever made gifs with 'image magicks' it seems to redistridute 0-9 amongst the others...