Is it possible to add scenes dynamically?

di0deman · December 11, 2024 at 2:57 AM

Hi, everyone.

I'm trying to add scenes at runtime.

I searched the forums and found similar threads and tried to do this, but it didn't work.

I tried something like the code below:

Code

<krpano>
	<action autorun="onstart" scope="local">
		set(scene[0],
			name = 'livingroom_0',
			title = 'livingroom',
			onstart = '',
			thumburl = '%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/thumb.jpg',
			lat = '',
			lng = '',
			heading = '',
			content = '
        <control bouncinglimits="calc:image.cube ? true : false" />
        <view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="2.0" fovmin="70" fovmax="140" limitview="auto" />
        <preview url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/preview.jpg" />
        <image>
            <cube url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/pano_%s.jpg" />
        </image>
		');
		debugvar(scene[0]);
		loadscene(get(scene[0].name), null, KEEPPLUGINS, OPENBLEND(0.5, 0.0, 0.75, 0.05, linear));
	</action>
</krpano>

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The log output is as follows:

Code

DEBUG: scene[0]=[Object] type=object
DEBUG: scene[0].content=[
<control bouncinglimits="calc:image.cube ? true : false"/>
<view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="2.0" fovmin="70" fovmax="140" limitview="auto"/>
<preview url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/preview.jpg"/>
<image>
<cube url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/pano_%s.jpg"/>
</image>
        ] type=string
DEBUG: scene[0].heading=[] type=string
DEBUG: scene[0].lat=[] type=string
DEBUG: scene[0].lng=[] type=string
DEBUG: scene[0].name=[livingroom_0] type=string
DEBUG: scene[0].onstart=[] type=string
DEBUG: scene[0].thumburl=[%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/thumb.jpg] type=string
DEBUG: scene[0].title=[livingroom] type=string
ERROR: loadscene() - scene "livingroom_0" not found

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The output of debugvar(scene[0]) shows that it is set correctly in the scene.

However, the loadscene function says that livingroom_0 does not found.

I coded like this to solve this problem.

Code

<krpano>
	<action autorun="onstart" scope="local">
	<![CDATA[
		calc(local.scene_string, '
<krpano>
	<scene name="livingroom_0" title="livingroom" onstart="" thumburl="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/thumb.jpg" lat="" lng="" heading="">
		<control bouncinglimits="calc:image.cube ? true : false" />
		<view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="2.0" fovmin="70" fovmax="140" limitview="auto" />
		<preview url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/preview.jpg" />
		<image>
			<cube url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/pano_%s.jpg" />
		</image>
	</scene>
</krpano>
');
		includexmlstring(get(local.scene_string));

		debugvar(scene[0]);
		loadscene(get(scene[0].name), null, KEEPPLUGINS, OPENBLEND(0.5, 0.0, 0.75, 0.05, linear));
	]]>
	</action>

</krpano>

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Similar to the log results shown earlier, but the loadscene function does not fail.

Code

DEBUG: scene[0]=[Object] type=object
DEBUG: scene[0].content=[
        <control bouncinglimits="calc:image.cube ? true : false"/>
        <view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="2.0" fovmin="70" fovmax="140" limitview="auto"/>
        <preview url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/preview.jpg"/>
        <image>
            <cube url="%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/pano_%s.jpg"/>
        </image>
    ] type=string
DEBUG: scene[0].heading=[] type=string
DEBUG: scene[0].lat=[] type=string
DEBUG: scene[0].lng=[] type=string
DEBUG: scene[0].name=[livingroom_0] type=string
DEBUG: scene[0].onstart=[] type=string
DEBUG: scene[0].thumburl=[%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/thumb.jpg] type=string
DEBUG: scene[0].title=[livingroom] type=string

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Is it not possible to add a scene with the set function in krpano?

klaus.krpano · December 12, 2024 at 10:22 AM Official Post

Hi,

when creating a new array item by setting an item with index 0 to some values, an automatic name for the item will be created.

The setting of the name will then actually change the name, but don't update the index/name mapping.

Changing the name of an array item is only possible by using renamearrayitem().

But you could do it different - direct create the scene item with the name it should have:

Code

set(scene[livingroom_0],
   title = 'livingroom',
   onstart = '',
   thumburl = '%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/thumb.jpg',
   ...
);
loadscene('livingroom_0', ...);

Or if index 0 is mandatory - first create the item (and don't set the name) and then rename it:

Code

set(scene[0],
   title = 'livingroom',
   onstart = '',
   thumburl = '%VIEWER%/panos/104b_0_on/desktop/livingroom_0.tiles/thumb.jpg',
   ...
);
scene.renamearrayitem(get(scene[0].name), 'livingroom_0');
loadscene(0, ...);

Best regards,
Klaus

di0deman · December 12, 2024 at 12:36 PM

Hi, klaus

My problem has been solved. Thank you.

Is it possible to add scenes dynamically?

Participate now!

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