Yep, this solves the problem. Thanks a lot. Christian Quoting Michael Bedward <[email protected]>:
> Hello Christian, > > Check what version of sphinx you have - older versions (0.6x) have > problems with the docs. I'm using 1.07. > > Michael > > On 29 April 2011 14:21, <[email protected]> wrote: >> As an tutorial here >> http://docs.geotools.org/latest/userguide/index.html ? >> >> Title: Affine Transform >> >> But before I start I should be able to build the docs >> >> mvn clean install produces an error >> >> >> [exec] reST markup error: >> [exec] /home/christian/gt-trunk/docs/user/faq.txt:18: (SEVERE/4) >> Problems with "include" directive path: >> [exec] IOError: [Errno 2] No such file or directory: >> '/welcome/faq.txt'. >> >> Some hints ? >> >> >> Quoting Jody Garnett <[email protected]>: >> >>> Would you like to add this to the documentation? >>> >>> Formally the referencing documentation asks people to understand >>> what an affine transform is; providing this background would be more >>> useful. >>> >>> -- >>> Jody Garnett >>> >>> On Thursday, 28 April 2011 at 11:34 PM, [email protected] wrote: >>>> Some times ago I wrote a mail about AffineTransforms, perhaps it >>>> helps. It is possible to draw pixels using world coordinates. Please >>>> read below >>>> ---------------- >>>> >>>> Some mathematical basics here. >>>> An affine transform is a powerful mechanism to transform coordinates. >>>> To get the new >>>> coordinates x' and y', the following calculation is done. >>>> >>>> [ x'] [ m00 m01 m02 ] [ x ] [ m00x + m01y + m02 ] >>>> [ y'] = [ m10 m11 m12 ] [ y ] = [ m10x + m11y + m12 ] >>>> [ 1 ] [ 0 0 1 ] [ 1 ] = [ 0 + 0 + 1 ] >>>> >>>> A simple example: >>>> if you want to shift a point 5 units on the x axis and -7 units at the >>>> y axis, the >>>> following matrix is needed >>>> >>>> [ 1 0 5 ] >>>> [ 0 1 -7 ] >>>> [ 0 0 1 ] >>>> >>>> Of course, you can say this is easy, x'=x+5 and y'=y-7 would do the same. >>>> >>>> Another one, lets do some scaling, say factor 3 >>>> >>>> [ 3 0 0 ] >>>> [ 0 3 0 ] >>>> [ 0 0 1 ] >>>> >>>> This is easy too, x'=x*3 and y'=y*3 would the job. >>>> >>>> The power of affine transforms is that you can combine multiple >>>> matrices into a single >>>> one, doing a set of individual transformations within one step. There >>>> is a java method >>>> "concatenate(AffineTransform)" for the AffineTransform class. But be >>>> careful, given 3 >>>> transformatons A,B,C and you want to combine them in this order, you >>>> have to go from >>>> right to left. >>>> C concatenate B concatenate A will give you the expected result. >>>> >>>> A mapping from world coordinates to pixel coordinates needs some >>>> operations but can be >>>> done within one affine transformation. >>>> >>>> The second powerful feature is that you can create an inverse >>>> transform (Method >>>> createInverse), which will do the mapping in the other direction out >>>> of the box. >>>> >>>> Believe me, if you are used to use AffineTransform objects, you will >>>> use them forever. >>>> >>>> Hope this helps >>>> Cheers >>>> Christian >>>> ----------- >>>> >>>> >>>> Quoting Francesca Martelli <[email protected]>: >>>> >>>> > Hi all, >>>> > I have a problem with translation from utm coordinates in screen pixel >>>> > position. I have already seen the tutorials (world2screen, >>>> > data2world...), but examples reported there seem do not work in my case. >>>> > >>>> > I have a mapContext with shapefiles in a jmappane, and I would like to >>>> > paint a point (with position expressed in UTM coordinates) over the map. >>>> > >>>> > Any help is greatly appreciated. >>>> > Francesca >>>> > >>>> > >>>> > -- >>>> > Francesca Martelli, Computer Science Ph.D. >>>> > Algorithms and Computational Mathematics Group, IIT - CNR, Pisa >>>> > Phone: +39 050 315 3191 (office), +39 050 315 2333 (fax) >>>> > http://www.iit.cnr.it/francesca.martelli/ >>>> > email: [email protected] >>>> > >>>> > >>>> > >>>> > >>>> ------------------------------------------------------------------------------ >>>> > WhatsUp Gold - Download Free Network Management Software >>>> > The most intuitive, comprehensive, and cost-effective network >>>> > management toolset available today. Delivers lowest initial >>>> > acquisition cost and overall TCO of any competing solution. >>>> > http://p.sf.net/sfu/whatsupgold-sd >>>> > _______________________________________________ >>>> > Geotools-gt2-users mailing list >>>> > [email protected] >>>> > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>>> >>>> >>>> >>>> ---------------------------------------------------------------- >>>> This message was sent using IMP, the Internet Messaging Program. >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> WhatsUp Gold - Download Free Network Management Software >>>> The most intuitive, comprehensive, and cost-effective network >>>> management toolset available today. Delivers lowest initial >>>> acquisition cost and overall TCO of any competing solution. >>>> http://p.sf.net/sfu/whatsupgold-sd >>>> _______________________________________________ >>>> Geotools-gt2-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>>> >>> >> >> >> >> ---------------------------------------------------------------- >> This message was sent using IMP, the Internet Messaging Program. >> >> >> >> ------------------------------------------------------------------------------ >> WhatsUp Gold - Download Free Network Management Software >> The most intuitive, comprehensive, and cost-effective network >> management toolset available today. Delivers lowest initial >> acquisition cost and overall TCO of any competing solution. >> http://p.sf.net/sfu/whatsupgold-sd >> _______________________________________________ >> Geotools-gt2-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >> > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
