Hi, Direct edit works fine and it is to some extent very easy for users. If for example a scanned image does not suit with existing data, just select the geometry and move and resize it to suit it with existing data. If one knows that georeferencing geometries are selectable this is actually very easy and intuitive. And I do not know that other GIS programs support such a simple but powerful way for georeferencing.
The bad thing is that only resize and move are supported. People using scanned images would immediately ask why images can't be rotated and next, why images cannot be warped as well. Supporting rotated images would mean about the same as supporting the rotation parameters of ESRI world file. I am not sure about warping on-the-fly, we may have something to that direction in this new feauture that was added to OJ .1.6.0 * adding support for GeoTIFF with transformation matrix georeferencing courtesy of Nicolas Ribot Transformation matrix sounds as something that could be created by using the four corner points of bounding polygon of the image as ground corner poinst. When it comes to direct editing of WKT, polygon as WKT is not friendly for editing text directly. Enhanced WKT handling so that "BBOX" or "Envelope" could be used for inputting a box-like geometry would be nice for this use cas. I have been writing about this earlier because WMS requests contain BBOXes and possibility to create polygons by writing the BBOX into WKT box would be practical. As a programming task it is perhaps not ultimately difficult (If BBOX found, construct a POLYGON and continue). I suggest to keep the direct edit of georeferencing geometries even it is not totally production ready. Is is still a clever way for georeferencing and it can be made better later. Some documentation would be needed to make clear that only resize and move are usable at the moment. I do not believe we can add constraints so that only those two toold could be used for editing the image layer geometries but that would be a better immediate solution. -Jukka Rahkonen- ________________________________________ edgar soldin wrote: > hey Jukka, > any results on the below? ..ede -------- Original Message -------- Subject: Re: [JPP-Devel] direct geometry edit Date: Tue, 17 Sep 2013 20:22:17 +0200 From: edgar.sol...@web.de To: OpenJump develop and use <jump-pilot-devel@lists.sourceforge.net> ok.. i ask because the rereferencing of images might be easier when done directly vs. via gui move and resize. Jukka: could you check the new "Referenced Image" reader and try to rereference an image via A. dragging/resizing of the image's geometry B. directly editing the geometry's wkt and come back how it works for you? ..thanks ede On 17.09.2013 20:17, Michaël Michaud wrote: > Hi, > > Yes, very simple, > 1) New layer, new feature > Edit > Add a new features... > > 2) Modify existing feature > Select feature, right click, View/Edit Selected Feature Geometry > > Both use WKT as input format > > Michaël > >> is there a way in OJ gui to directly enter coordinates e.g. wkt to edit an >> existing geometry? >> >> ..ede >> >> ------------------------------------------------------------------------------ >> LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! >> 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint >> 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack >> includes >> Mobile, Cloud, Java, and UX Design. Lowest price ever! 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