{"id":397,"date":"2011-09-27T16:46:19","date_gmt":"2011-09-27T16:46:19","guid":{"rendered":"http:\/\/www.geoplanit.co.uk\/?page_id=397"},"modified":"2011-10-28T14:59:21","modified_gmt":"2011-10-28T14:59:21","slug":"cga-how-to-test-a-plot-faces-two-streets","status":"publish","type":"page","link":"https:\/\/www.geoplanit.co.uk\/?page_id=397","title":{"rendered":"CGA : How to test a plot faces two streets"},"content":{"rendered":"

Here’s a useful test (I hope) I was trying to test whether a Lot was a corner (no not the LotCorner which is a triangle), this comes close but does at least check to see whether a Lot has two sides facing a street.<\/p>\n

Lot -->\r\n\tsetback(0.1) {streetSide: nil | remainder : test(comp.index)}\r\n\r\ntest(compIndex) -->\r\n\tcase streetWidth(0) > 0 && streetWidth(1) > 0 : building\r\n\tcase streetWidth(0) > 0 && streetWidth(2) > 0 : building\r\n\tcase streetWidth(0) > 0 && streetWidth(3) > 0 : building\r\n\tcase streetWidth(1) > 0 && streetWidth(1) > 0 : building\r\n\tcase streetWidth(1) > 0 && streetWidth(2) > 0 : building\r\n\tcase streetWidth(1) > 0 && streetWidth(3) > 0 : building\r\n\tcase streetWidth(2) > 0 && streetWidth(1) > 0 : building\r\n\tcase streetWidth(2) > 0 && streetWidth(2) > 0 : building\r\n\tcase streetWidth(2) > 0 && streetWidth(3) > 0 : building\r\n\tcase streetWidth(3) > 0 && streetWidth(1) > 0 : building\r\n\tcase streetWidth(3) > 0 && streetWidth(2) > 0 : building\r\n\tcase streetWidth(3) > 0 && streetWidth(3) > 0 : building\r\n\telse : nil\r\n\r\nbuilding-->\r\n\toffset(-2, inside)\r\n\textrude(rand(3,15))<\/pre>\n
I posted the above code to the ESRI CityEngine forum to ask for improvements<\/a> and was given the following code (apparently what I did was not so good…):<\/span><\/p>\n
attr streetWidth(i) =  0\r\n\r\nLotInner --> NIL\r\n\r\nLot -->\r\n\tCornerRecursion(geometry.nVertices - 1, 0)\r\n\r\nCornerRecursion ( edgeID, nStreetEdges ) -->\r\n\tcase edgeID >= 0 :\r\n\t\tcase streetWidth(edgeID) > 0 :\r\n\t\t\t#print (edgeID)\r\n\t\t\tCornerRecursion ( edgeID - 1, nStreetEdges + 1 )\r\n\t\telse:\r\n\t\t\t#print (edgeID)\r\n\t\t\tCornerRecursion ( edgeID - 1, nStreetEdges )\r\n\telse:\r\n\t\tcase nStreetEdges >= 2 :\r\n\t\t\tIsCornerLot\r\n\t\telse:\r\n\t\t\tIsNotCornerLot\r\n\r\nIsCornerLot -->\r\n\tcolor(\"#ff0000\")\r\n\r\nIsNotCornerLot -->\r\n\tcolor(\"#00ff00\")<\/pre>\n
<\/pre>\n","protected":false},"excerpt":{"rendered":"
Here’s a useful test (I hope) I was trying to test whether a Lot was a corner (no not the LotCorner which is a triangle), this comes close but does at least check to see whether a Lot has two sides facing a street. Lot –> setback(0.1) {streetSide: nil | remainder : test(comp.index)} test(compIndex) –> […]<\/p>\n","protected":false},"author":161,"featured_media":0,"parent":265,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-397","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"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=397"}],"version-history":[{"count":6,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/397\/revisions"}],"predecessor-version":[{"id":419,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/397\/revisions\/419"}],"up":[{"embeddable":true,"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/265"}],"wp:attachment":[{"href":"https:\/\/www.geoplanit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}