{"id":662,"date":"2012-07-17T15:54:32","date_gmt":"2012-07-17T15:54:32","guid":{"rendered":"http:\/\/www.geoplanit.co.uk\/?p=662"},"modified":"2012-07-17T15:54:44","modified_gmt":"2012-07-17T15:54:44","slug":"cityengine-project-update","status":"publish","type":"post","link":"https:\/\/www.geoplanit.co.uk\/?p=662","title":{"rendered":"A CityEngine Project Update"},"content":{"rendered":"

My CityEngine rules are really coming on now but I need time to think about how best to write the rules. \u00a0 One thing I have started to learn is it’s really important to identify early on what attributes you want to control and which elements of the model you want to switch off.<\/p>\n

You can use the case statement and an attribute with a true of false value to create that switch. \u00a0 In practical terms it means you can fold many rule files into one, and at the flip of a switch reveal attributes that were previously hidden.<\/p>\n

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The example here shows my urban area (somewhere in a modern sub-division in the Middle East) in basic Google Earth style, but flip the on switch and the same model is now coloured according to a set of rules testing the lots area, red is too big, turquoise is near to the required lot size and green is within the lot area range I want.<\/p>\n

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Forget my choice of colour, this is a genuinely useful rule<\/strong>, being able to see what impact changes in the rule file are having is fantastic (but only if you’re a planner I suspect).<\/p>\n

CityEngine’s power really comes when you see it as a design tool, it is by no means perfect but you can quickly set up a rule file and see the results of your ‘rules’ or planning standards very quickly. \u00a0 What I hope is that ESRI allows ArcGIS to get some of CityEngine’s functionality, especially the dymanic street network capabilities of setting road and pavement widths…<\/p>\n

I may put up a video showing just how quick this model\u00a0refreshes\u00a0itself… it’s interesting seeing how CityEngine runs the rule over you model colouring each model in turn…<\/p>\n","protected":false},"excerpt":{"rendered":"

My CityEngine rules are really coming on now but I need time to think about how best to write the rules. \u00a0 One thing I have started to learn is it’s really important to identify early on what attributes you want to control and which elements of the model you want to switch off. You […]<\/p>\n","protected":false},"author":161,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93,12,13,116,145,156],"tags":[],"class_list":["post-662","post","type-post","status-publish","format-standard","category-3d","category-arcgis","category-arcmap","category-city-creation","category-cityengine","category-geodesign"],"_links":{"self":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/662","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/users\/161"}],"replies":[{"embeddable":true,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=662"}],"version-history":[{"count":3,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/662\/revisions"}],"predecessor-version":[{"id":667,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/662\/revisions\/667"}],"wp:attachment":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}