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UrbanLISP covers a wide range of customizations for AutoCAD. LISP is a program language of AutoCAD and is one of the ways UrbanLISP customizes AutoCAD's working environment. UrbanLISP is the result of three passions: the love for cities and architecture, the fascination for programming and most of all the joy of working together with people.

UrbanLISP commands are developed during projects in Urban Design, Landscape Architecture and Architecture: Urban Environments in it's broadest sense. In a profession where deadlines are often tight UrbanLISP commands have to enable the user to focus on designing as much as possible be it by saving time, increasing accuracy or streamlining AutoCAD. Being able to focus on designing and not having to do some of the most tedious tasks UrbanLISP commands just make working with AutoCAD more fun!

Trough UrbanLISP's video tutorials frequent users of AutoCAD can see what the possibilities of LISP programming are. The tutorials serve as a guidance for those who have UrbanLISP at their disposal. Together these videos form an overview of the most significant part of UrbanLISP's portfolio, toolbox or arsenal if you will. A big thanks to my colleges, who make this work so much fun. Enjoy watching the videos!

Layer Color Transition

The 'Layer Color Transition' command is created as finishing touch to several other commands on this website. The best way to use this command is to generate an overview of the desired layers, there are several commands on this website which can do this. The layers could represent ascending heights used for height lines, they could represent apartments with ascending stories, basically a series of layers which are related to each other with a particular order. Once an overview is created in the drawing the user needs to set up two entities. The user has to pick two colors and use one color on either one of the entities creating two entities with two different colors. It doesn't matter if the color is assigned to the layer or to the entity itself. The 'Layer Color Transition' command will ask for two colors. The user can choose colors by selecting entities, so the entities which are prepared can be selected. The color which is visible will be retrieved from the entity. If the entity is colored by layer the command will pick the color of the layer, if the entity has it's own color the command will retrieve that color. When the second color is picked the command will require a selection. Now the user should select the prepared overview of layers. When the selection is confirmed the command will assign the first selected color to the layer of the first entity in the selection and the second color to the layer of the last entity in the selection. The color of the layer of the entities between the first and last picked entity will be a value between the first and last picked color creating a gradual transition of colors between the layers.



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