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{{Infobox software
 
{{Infobox software
| icon      = Grey1x4.png
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| icon      = ""
| screenshot = Grey1x4.png
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| screenshot = ""
 
| website    = [https://gitlab.com/marzof/prj gitlab.com/marzof/prj]
 
| website    = [https://gitlab.com/marzof/prj gitlab.com/marzof/prj]
 
| source    = [https://gitlab.com/marzof/prj Repo on gitlab]
 
| source    = [https://gitlab.com/marzof/prj Repo on gitlab]
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| bugs      = [https://gitlab.com/marzof/prj/-/issues Issue page on gitlab]
 
| bugs      = [https://gitlab.com/marzof/prj/-/issues Issue page on gitlab]
 
| community  = ""
 
| community  = ""
| maturity  = Promising
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| maturity  = At the very beginning
 
| donation  = ""
 
| donation  = ""
 
}}
 
}}
  
''prj'' is a [https://docs.blender.org/manual/en/latest/editors/preferences/addons.html Blender_Add-on] for generating semantic technical drawings from 3d model. Its main purpose is to help architects and designer to make building and interior drawings automatically. ''prj'' generates linked data-rich SVG drawings.
 
It has particular strengths:
 
  
* Drawings are in the open file format [[Scalable_Vector_Graphics_(SVG)|Scalable Vector Graphics (SVG)]]. SVG is a non-binary and non-proprietary format that can be viewed by a simple browser on any device. Interactivity can be implemented in SVG files and their styles can be handled by [https://en.wikipedia.org/wiki/CSS web standard CSS]. Editing is easy and graphically powerful using free software like [[Inkscape]] and [[Krita]].
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=== What is prj ===
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''prj'' is a Blender add-on for '''generating semantic technical drawings from 3d model.'''<br>
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Its main purpose is to ''help architects and designer to make building and interior drawings automatically''.
  
* Drawings are linked. Every 3D object is represented in a single dedicated SVG file and all those files are linked (as <use> element) to the main drawing. That allows to keep files size small and to limit redrawing to changed objects only.
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=== Disclaimer ===
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''prj'' is currently '''under development and may be subject to changes''': using it on production is on your own responsibility.<br>
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At the moment ''prj'' has been '''tested on Linux and Windows machines only''' and is not supposed to work on other OS
  
* Drawings are data-rich. Every object stores information about it directly inside the SVG. Hence text searches are possible over single and multiple drawings.
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=== About prj ===
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''prj'' generates '''''linked data-rich SVG''''' drawings.<br>
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In particular:
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* '''drawings are in SVG format'''
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:''Scalable Vector Graphics'' is a '''non-binary''' and '''non-proprietary format''' that can be viewed by a simple browser on any device. '''Interactivity''' can be implemented on it and its style can be '''handled by CSS'''. Editing is easy and graphically powerful using both open source source and proprietary softwares.
  
''prj'' is also able to produce drawings in the less free [[Drawing_Exchange_Format_(DXF)|DXF]] or [[Drawing_(DWG)|DWG]] file formats.
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* '''drawings are linked'''
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:Every 3D object is represented in a single dedicated SVG file and all those files are linked (as <use> element) to the main drawing. That allows to '''keep files size small''' and to limit redrawing to changed objects only.
  
''prj'' uses [https://docs.blender.org/manual/en/latest/scene_layout/object/properties/line_art.html Blender Line Art] feature and SVG grease pencil exporter.
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* '''drawings are data-rich'''
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:Every object '''stores information''' about it directly inside the SVG. Hence '''text searches''' are possible over single and multiple drawings.
  
== Why use prj? ==
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''prj'' is able to produce drawings in ''DXF'' or ''DWG'' file format as well.<br>
''prj'' isn't trying to be a simple drawing tool. Its main aim is to be a tool to manage projects information by generating data-rich drawings (a kind of BIM drawing tool).
 
  
This is why it generates drawings in SVG format with a linked structure: this way every object in the drawing can return informations about it (product id, size, weight, physical properties, cost, typology, family belonging, etc…) and allow user to get, for example, bill of quantities or interactive drawing you can query.
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''prj'' uses Blender ''Line Art'' feature and ''SVG grease pencil exporter''.
  
For these reasons it's recommended to complete the drawing process (composing, styling with css, adding annotations and dimensions) using an SVG editor (like the open source [[Inkscape]]). There are plans for prj SVG exports to store many other types of data in the future (such as quantities).
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=== Why using prj? ===
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''prj'' '''doesn't mean to be a simple drawing tool''': its main aim is to be '''a tool to manage projects information by generating data-rich drawings''' (a kind of BIM drawing tool).
  
=== prj vs blenderbim 2d drawing ===
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This is why it generates drawings in SVG format with a linked structure: this way every object in the drawing can return informations about it (product id, size, weight, physical properties, cost, typology, family belonging, etc…)* and allow user to get, for example, bill of quantities or interactive drawing you can query.
Main difference between prj and BlenderBIM 2D_documentation:
 
  
* BlenderBim focuses on creating 2d documentation based on an ifc project
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For these reasons it's recommended to complete the drawing process (composing, styling with css, adding annotations and dimensions) using an SVG editor (like the open source [[Inkscape]]).<br>
* prj exports Blender objects regardless of being part of an ifc project
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Anyway, if you don't care to keep these information inside your drawings, you can produce ''DXF'' or ''DWG'' files.
  
As of July 2022 have tested prj (v0.0.9d) exported svg files imported to [[QCAD|qcad professional]] . This seems to work fine.
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''* It's important to point out that, at the moment, the add-on is not capable to store some data yet (like quantities) but in future it should be able to do it.''
  
= See also =
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=== Documentation ===
* [[Inkscape]]
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At the moment a proper documentation is missing.<br>
* [[Blender]]
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However, a [https://gitlab.com/marzof/prj#getting-started ''Getting started'' guide] is present on the main page of the add-on repo.
* [[Krita]]
 
* [[Category:Blender_Add-on]]
 
* [[Scalable_Vector_Graphics_(SVG)]]
 
* The [https://community.osarch.org/discussions/tagged/prj prj tag] on the OSArch forum
 
  
= External Resources =
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=== External Resources ===
* [https://gitlab.com/marzof/prj#getting-started ''Getting started''] guide
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{{Template:Software}}
* [https://gitlab.com/marzof/prj/-/wikis/Tips-and-tricks ''Tips and tricks'']
 
 
 
{{Blender_Add-on}}
 
{{software}}
 
 
[[Category:Blender Add-on]]
 
[[Category:Blender Add-on]]
 
[[Category:Blender]]
 
[[Category:Blender]]

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