# Web Support

**URL:** https://discourse.paraview.org/c/web-support/10.md?page=6

[Latest](https://discourse.paraview.org/latest.md) · [Categories](https://discourse.paraview.org/categories.md) · [Tags](https://discourse.paraview.org/tags.md)

**Page:** 7

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## [In the Visualizer, the image is transmitted synchronously or asynchronously?](https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787)

<div class="topic-metadata">

**Author:** [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)\
**Replies:** 2\
**Last updated:** [March 25, 2021, 2:05am UTC](https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787 "2021-03-25T02:05:49Z")

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Hello, When reading the soure codes about the Visualizer, we find that the image data is transmitted using wslink. But we are not sure that the image is transmitted synchronously, or asynchronously. So we come here for …

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## [Performance difference caused by local rendering and remote rendering](https://discourse.paraview.org/t/performance-difference-caused-by-local-rendering-and-remote-rendering/6684)

<div class="topic-metadata">

**Author:** [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)\
**Replies:** 7\
**Last updated:** [March 18, 2021, 5:22pm UTC](https://discourse.paraview.org/t/performance-difference-caused-by-local-rendering-and-remote-rendering/6684 "2021-03-18T17:22:25Z")

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Hello, I am testing the web client performance using VTK as server in remote mode. We read a obj model in the local file which has 1 billion triangle faces and got 3 fps. But when we rendered the same model with vtk rend…

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## [Adding manipulation features in PV glance](https://discourse.paraview.org/t/adding-manipulation-features-in-pv-glance/6729)

<div class="topic-metadata">

**Author:** [@mary](https://discourse.paraview.org/u/mary)\
**Replies:** 1\
**Last updated:** [March 17, 2021, 7:04pm UTC](https://discourse.paraview.org/t/adding-manipulation-features-in-pv-glance/6729 "2021-03-17T19:04:28Z")

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Hi everybody, I have recently discovered PV glance. I was wondering whether it is possible to extend the feature set in the app with the display of colorbars, slicing of solid 3D objects, showing of groups in the mesh, …

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## [Paraview-Glance (licensing/attribution) What UI elements can be changed?](https://discourse.paraview.org/t/paraview-glance-licensing-attribution-what-ui-elements-can-be-changed/6710)

<div class="topic-metadata">

**Author:** [@lowry](https://discourse.paraview.org/u/lowry)\
**Replies:** 1\
**Last updated:** [March 17, 2021, 6:58pm UTC](https://discourse.paraview.org/t/paraview-glance-licensing-attribution-what-ui-elements-can-be-changed/6710 "2021-03-17T18:58:24Z")

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Hi there, weird question, but I want to cover all my bases before diving into development. I’m looking to use paraview-glance for production use to visualize 3D objects within my organization by embedding the web-app wi…

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## [Visualizer data transfer mode](https://discourse.paraview.org/t/visualizer-data-transfer-mode/6691)

<div class="topic-metadata">

**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 1\
**Last updated:** [March 15, 2021, 3:50pm UTC](https://discourse.paraview.org/t/visualizer-data-transfer-mode/6691 "2021-03-15T15:50:12Z")

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I think the ParaviewWeb project transmits images in compression mode only by setting JPEG quality. I found Visualizer use vtkLZ4compressor, but I didn’t find it in code, perhaps because of my bad code level, I want to r…

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## [Paraview-Glance Design](https://discourse.paraview.org/t/paraview-glance-design/6689)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 1\
**Last updated:** [March 15, 2021, 2:48pm UTC](https://discourse.paraview.org/t/paraview-glance-design/6689 "2021-03-15T14:48:58Z")

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Hi, I recently built an instance of Paraview-Glance as I wished to customize the interface. While doing that, I saw that almost all of the DOM was being created by a JS script. Can somebody please share why this design …

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## [Paraview-Glance The need for live server](https://discourse.paraview.org/t/paraview-glance-the-need-for-live-server/6690)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 1\
**Last updated:** [March 15, 2021, 2:38pm UTC](https://discourse.paraview.org/t/paraview-glance-the-need-for-live-server/6690 "2021-03-15T14:38:38Z")

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Hi, I built a local instance of Paraview-Glance and edited the interface. Only made changes in the glance.f7a92c46baf3e424c5b4.js. When I try to load files I see this error. glance-external-Workbox.878508a61ecced2e9e9…

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## [A problem with using distributed rendering in ParaviewWeb](https://discourse.paraview.org/t/a-problem-with-using-distributed-rendering-in-paraviewweb/6639)

<div class="topic-metadata">

**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 1\
**Last updated:** [March 8, 2021, 2:58pm UTC](https://discourse.paraview.org/t/a-problem-with-using-distributed-rendering-in-paraviewweb/6639 "2021-03-08T14:58:03Z")

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This worked when I used ParaView as the server, the server used “’ pv\_protocols. ParaViewWebStartupRemoteConnection '” successfully connected to the pvserver, Is this distributed rendering also work when using VTK as t…

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## [ParaViewWeb, Python Launcher, and Apache, and 'Process did not properly start' Error](https://discourse.paraview.org/t/paraviewweb-python-launcher-and-apache-and-process-did-not-properly-start-error/6098)

<div class="topic-metadata">

**Author:** [@mayfielg](https://discourse.paraview.org/u/mayfielg)\
**Replies:** 5\
**Last updated:** [March 4, 2021, 1:50am UTC](https://discourse.paraview.org/t/paraviewweb-python-launcher-and-apache-and-process-did-not-properly-start-error/6098 "2021-03-04T01:50:46Z")

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Hello, I’m working on spinning up an instance of ParaViewWeb Python Launcher with Apache as a front-end as described in your documentation, and am running into some confounding issues. Basically, my current local setup…

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## [Could Paraview Glance be used as a custom AI tool viewer](https://discourse.paraview.org/t/could-paraview-glance-be-used-as-a-custom-ai-tool-viewer/6092)

<div class="topic-metadata">

**Author:** [@MTLathara](https://discourse.paraview.org/u/MTLathara)\
**Replies:** 11\
**Last updated:** [March 4, 2021, 1:10am UTC](https://discourse.paraview.org/t/could-paraview-glance-be-used-as-a-custom-ai-tool-viewer/6092 "2021-03-04T01:10:05Z")

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Okay. I have search almost the entire paraview discussion forum and could not get the answer. So this is my problem. We are developing an AI algorithm that could pick out tumor cells from Dicom images and the algorithm …

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## [Kitware/Visualizer renderer doesn't update the image automatically](https://discourse.paraview.org/t/kitware-visualizer-renderer-doesnt-update-the-image-automatically/6540)

<div class="topic-metadata">

**Author:** [@lbs1163](https://discourse.paraview.org/u/lbs1163)\
**Replies:** 7\
**Last updated:** [March 3, 2021, 3:06pm UTC](https://discourse.paraview.org/t/kitware-visualizer-renderer-doesnt-update-the-image-automatically/6540 "2021-03-03T15:06:07Z")

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Hello! I’m working on making single rendering view with paraview backend. I successed with running python launcher included in Kitware/visualizer. I changed the renderer of visualizer from React/Renderers/VtkRenderer t…

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## [Newbie! Please help me setting up](https://discourse.paraview.org/t/newbie-please-help-me-setting-up/6356)

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**Author:** [@amiraslanpour](https://discourse.paraview.org/u/amiraslanpour)\
**Replies:** 10\
**Last updated:** [February 5, 2021, 3:36pm UTC](https://discourse.paraview.org/t/newbie-please-help-me-setting-up/6356 "2021-02-05T15:36:14Z")

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Hello Guys. I am starting to run paraviewWeb on a local server but I am stuck in the first step. I am following the process explained in here. I ran the command “npm install paraviewweb --save” and xBooomx!! I am stuck…

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## [Modifying Kitware/visualizer but resetCamera is not working...](https://discourse.paraview.org/t/modifying-kitware-visualizer-but-resetcamera-is-not-working/6318)

<div class="topic-metadata">

**Author:** [@lbs1163](https://discourse.paraview.org/u/lbs1163)\
**Replies:** 7\
**Last updated:** [February 1, 2021, 4:12pm UTC](https://discourse.paraview.org/t/modifying-kitware-visualizer-but-resetcamera-is-not-working/6318 "2021-02-01T16:12:42Z")

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Hello! I’m working on making single rendering view with paraview backend. I successed with running python launcher included in Kitware/visualizer. I changed the renderer of visualizer from React/Renderers/VtkRenderer …

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## [chrome browser crashs when saving state to glance file](https://discourse.paraview.org/t/chrome-browser-crashs-when-saving-state-to-glance-file/6336)

<div class="topic-metadata">

**Author:** [@hubutui](https://discourse.paraview.org/u/hubutui)\
**Replies:** 2\
**Last updated:** [February 1, 2021, 2:15am UTC](https://discourse.paraview.org/t/chrome-browser-crashs-when-saving-state-to-glance-file/6336 "2021-02-01T02:15:30Z")

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Now, I have a MRI image in nii.gz format, I could open it in paraview glance and save it to glance file. And I’d like to draw some annoations (bounding box and some text in color) on the image. So I convert the image to …

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## [How to show fps on the web client?](https://discourse.paraview.org/t/how-to-show-fps-on-the-web-client/6341)

<div class="topic-metadata">

**Author:** [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)\
**Replies:** 7\
**Last updated:** [January 31, 2021, 9:30pm UTC](https://discourse.paraview.org/t/how-to-show-fps-on-the-web-client/6341 "2021-01-31T21:30:17Z")

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Hello, I am puzzling about how to show fps on the web client. Now we have use the vtk as sever rendering core. Could anyone please show me some inspiration? Thank you all!

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## [Plugin porting from ParaView Desktop to ParaView Glance](https://discourse.paraview.org/t/plugin-porting-from-paraview-desktop-to-paraview-glance/6296)

<div class="topic-metadata">

**Author:** [@mpoudret](https://discourse.paraview.org/u/mpoudret)\
**Replies:** 4\
**Last updated:** [January 26, 2021, 3:41pm UTC](https://discourse.paraview.org/t/plugin-porting-from-paraview-desktop-to-paraview-glance/6296 "2021-01-26T15:41:21Z")

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Hello, We have already developed a ParaView Desktop plugin in order to support an additional file format. Now, we aim to develop a web-based visualization application in order to support this format in a web browser (we…

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## [Write sources / datasets used in a glance file](https://discourse.paraview.org/t/write-sources-datasets-used-in-a-glance-file/6244)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 5\
**Last updated:** [January 24, 2021, 10:59pm UTC](https://discourse.paraview.org/t/write-sources-datasets-used-in-a-glance-file/6244 "2021-01-24T22:59:53Z")

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Hi All, Is there an automated way to write either the sources or the datasets found in the glance file? I have a script that can generate either vtk or vtp files. I would like to create either the sources or datasets fr…

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## [Problems when use polydata to show models in file pvw-visualizer.py with paraview-web](https://discourse.paraview.org/t/problems-when-use-polydata-to-show-models-in-file-pvw-visualizer-py-with-paraview-web/6217)

<div class="topic-metadata">

**Author:** [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)\
**Replies:** 7\
**Last updated:** [January 18, 2021, 4:22pm UTC](https://discourse.paraview.org/t/problems-when-use-polydata-to-show-models-in-file-pvw-visualizer-py-with-paraview-web/6217 "2021-01-18T16:22:55Z")

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Hello, I am editing pvw-visualizer.py to show my own objs in paraview-web browser. However I have met some problems. First of all, I have successfully shown models in web browser using polydata. But I can’t set the at…

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## [Write .glance file](https://discourse.paraview.org/t/write-glance-file/6167)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 9\
**Last updated:** [January 18, 2021, 4:19pm UTC](https://discourse.paraview.org/t/write-glance-file/6167 "2021-01-18T16:19:28Z")

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Is it possible to write a .glance file using Python? In the following image,I see that a scalar is selected in the drop down menu when the file is loaded. I believe this behaviour comes from a saved state in the glance f…

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## [PV Glance - default split window](https://discourse.paraview.org/t/pv-glance-default-split-window/4190)

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**Author:** [@alib022](https://discourse.paraview.org/u/alib022)\
**Replies:** 5\
**Last updated:** [January 18, 2021, 1:01pm UTC](https://discourse.paraview.org/t/pv-glance-default-split-window/4190 "2021-01-18T13:01:01Z")

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Hi, We are trying to use PV-Glance in our web app, we seems to be having hard time making it to open in 4 window split as default. Any help would be appreciated. Thanks

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## [Paraview Glance - loading multiple files](https://discourse.paraview.org/t/paraview-glance-loading-multiple-files/4238)

<div class="topic-metadata">

**Author:** [@alib022](https://discourse.paraview.org/u/alib022)\
**Replies:** 31\
**Last updated:** [January 17, 2021, 5:06pm UTC](https://discourse.paraview.org/t/paraview-glance-loading-multiple-files/4238 "2021-01-17T17:06:02Z")

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Hi, I am customizing PV Glance to add to our app, something that we struggle with is to load multiple datasets with different color maps pre-set at load. We were able to add custom features inside the code that we can …

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## [vtk/vtp to vtk.js](https://discourse.paraview.org/t/vtk-vtp-to-vtk-js/6233)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 3\
**Last updated:** [January 17, 2021, 4:54pm UTC](https://discourse.paraview.org/t/vtk-vtp-to-vtk-js/6233 "2021-01-17T16:54:11Z")

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Is there a way to generate such polydata object in vtk.js format from either vtk or vtp? When we load a vtk or vtp file on Paraview glance, this conversion happens through some script. @jourdain, can you please point me…

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## [Does ParaviewWeb implement the VTK pick function?](https://discourse.paraview.org/t/does-paraviewweb-implement-the-vtk-pick-function/6179)

<div class="topic-metadata">

**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 1\
**Last updated:** [January 7, 2021, 4:07pm UTC](https://discourse.paraview.org/t/does-paraviewweb-implement-the-vtk-pick-function/6179 "2021-01-07T16:07:56Z")

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I now need to implement a function that uses the mouse to pick up the data displayed in the Canvas.I observe that VTK has already defined the method of point pick and cell pick, if this is already encapsulated, can we ad…

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## [glyph filter in Paraview Glance](https://discourse.paraview.org/t/glyph-filter-in-paraview-glance/6173)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 1\
**Last updated:** [January 6, 2021, 1:06am UTC](https://discourse.paraview.org/t/glyph-filter-in-paraview-glance/6173 "2021-01-06T01:06:48Z")

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Is there something equivalent to a glyph filter in Glance? If not, what is the best way to visualize normals?

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## [Simple web-based slicer that scales - architecture?](https://discourse.paraview.org/t/simple-web-based-slicer-that-scales-architecture/6136)

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**Author:** [@Charliebrowne](https://discourse.paraview.org/u/Charliebrowne)\
**Replies:** 2\
**Last updated:** [January 1, 2021, 8:37pm UTC](https://discourse.paraview.org/t/simple-web-based-slicer-that-scales-architecture/6136 "2021-01-01T20:37:01Z")

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hi all, I am trying to build a minimal prototype that mimics the slicer example : that is to say a very basic GUI that allows user to slice against Z and inspect the different layers in my object. Object is a set of iso…

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## [Where/How to start developing paraview web-based applications?](https://discourse.paraview.org/t/where-how-to-start-developing-paraview-web-based-applications/5059)

<div class="topic-metadata">

**Author:** [@rafaelmarch3](https://discourse.paraview.org/u/rafaelmarch3)\
**Replies:** 3\
**Last updated:** [December 29, 2020, 9:04pm UTC](https://discourse.paraview.org/t/where-how-to-start-developing-paraview-web-based-applications/5059 "2020-12-29T21:04:26Z")

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Hello all, I was amazed when I recently first saw the capabilities of Paraview Web. I decided I’ll do my best to develop some web-based applications that improve visualization/data processing workflows at my company. H…

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## [Paraviewweb install fails : monologue.js error?](https://discourse.paraview.org/t/paraviewweb-install-fails-monologue-js-error/6060)

<div class="topic-metadata">

**Author:** [@Charliebrowne](https://discourse.paraview.org/u/Charliebrowne)\
**Replies:** 6\
**Last updated:** [December 21, 2020, 1:30pm UTC](https://discourse.paraview.org/t/paraviewweb-install-fails-monologue-js-error/6060 "2020-12-21T13:30:19Z")

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Hi all ! I am trying to install Paraviewweb on my local machine on Debian and following tutorial found here but install fails at step $ npm install monologue.js --save-dev with the following error : ~/paraviewweb/myWeb…

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## [How does Visualizer open my own data model](https://discourse.paraview.org/t/how-does-visualizer-open-my-own-data-model/5996)

<div class="topic-metadata">

**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 15\
**Last updated:** [December 11, 2020, 3:27pm UTC](https://discourse.paraview.org/t/how-does-visualizer-open-my-own-data-model/5996 "2020-12-11T15:27:40Z")

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After I run Visualizer in cmd, I find it possible to open some built-in data models, such as cone, etc. I now have a question about how I open my own model on the Web?

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## [Getting dataDir from myProtocol](https://discourse.paraview.org/t/getting-datadir-from-myprotocol/5989)

<div class="topic-metadata">

**Author:** [@Francesc\_Costa](https://discourse.paraview.org/u/Francesc_Costa)\
**Replies:** 0\
**Last updated:** [December 6, 2020, 10:20am UTC](https://discourse.paraview.org/t/getting-datadir-from-myprotocol/5989 "2020-12-06T10:20:37Z")

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Hello, How do I get \_Server.dataDir from my protocol? I want to have access to \_Server.dataDir stored in pvw-lite.py from lite\_protocols.py? Thanks, Francesc

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## [Some problems with remote rendering](https://discourse.paraview.org/t/some-problems-with-remote-rendering/5969)

<div class="topic-metadata">

**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 0\
**Last updated:** [December 3, 2020, 1:02pm UTC](https://discourse.paraview.org/t/some-problems-with-remote-rendering/5969 "2020-12-03T13:02:25Z")

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Hello, experts, I wanted to develop a Web application that could render model. Since some models may be very large, remote rendering is required, which means that the model is rendered on the high-performance server sid…

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