Dear Xin,

I can confirm that, for a similar image https://twitter.com/jankosinski/status/1191458868561399808/photo/1 I rendered separate images for low and the high res map, overlaid them in Adobe Illustrator, and then used a gradient of transparency to blend the images.

Best,
Jan

-- 
Group leader at European Molecular Biology Laboratory (EMBL) Hamburg
Joint appointment Structural and Computational Biology Unit EMBL Heidelberg
Group leader at Centre for Structural Systems Biology (CSSB)

c/o DESY, Building 15 (CSSB), Room 02.247
Notkestraße 85
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On 8. Jan 2021, at 17:29, Elaine Meng <meng@cgl.ucsf.edu> wrote:

Hi Xin Su,
There is no option to combine different thresholds or to simulate and combine different resolutions in a single image.  Probably the example image you sent was made by first creating several separate images, and then using some other image-editing program like Photoshop to put them together.

If you have another question later: Usually we recommend address chimera-users@cgl.ucsf.edu for general questions.  This chimera-dev address is more for questions about programming (python).

Best,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Jan 7, 2021, at 11:08 PM, 苏欣 <suxin@shanghaitech.edu.cn> wrote:

Hi! It is very kind of you to do me a favor.
Could you tell me how to get such a scenario like the attached image in CHIMERA Or assign different threshold to parts of EM density map?
Thank you so much!
Xin Su


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