Added basic examples in how-to

[sariths]

Add examples for rtrace, rpict and rfluxmtx.

• [ ] rpict
• [ ] rtrace
• [ ] rflutxmtx

@taoning I added a discussion regarding the choice of input files here: https://github.com/LBNL-ETA/pyradiance/discussions/23

[sariths]

@taoning A simple example of rpict is here: https://gist.github.com/sariths/4c93a1a87457edba112212a3e1b23c6a I have added some actionable notes here: https://gist.github.com/sariths/4c93a1a87457edba112212a3e1b23c6a#file-pyradiance_rpict-py-L49-L50

Let me know what you think.

[taoning]

Looks good. Instead of write_to_file, maybe just write? I think we have file_path as the first argument, followed by data?

If the sky source is used for an octree, we can just feed the bytes to stdin in oconv rather than write to a file first.

In terms of sampling parameters, we can do

params = SamplingParamters()
params.update_from_dict({"-ab":1})
params.ad = 256
params.lw = 1 / params.ad
rpict(..., params=params.args())

Is this similar to what you have in mind?

[sariths]

Okay to all the suggestions. Any thoughts about ra_tiff, ra_bmp etc? I had a comment towards the end of the gist.

On Fri, Aug 4, 2023, 6:43 PM taoning @.***> wrote:

Looks good. Instead of write_to_file, maybe just write? I think we have file_path as the first argument, followed by data?

If the sky source is used for an octree, we can just feed the bytes to stdin in oconv rather than write to a file first.

In terms of sampling parameters, we can do

params = SamplingParamters() params.update_from_dict({"-ab":1})params.ad = 256 params.lw = 1 / params.ad rpict(..., params=params.args())

Is this similar to what you have in mind?

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[taoning]

Sure, we can add those tools.