[Liblas-devel] .net/mono bindings in c#

[Martin Rodriguez]

Hi:


>Fixed http://liblas.org/ticket/64

Thank you so much, but I find more bugs not only that:

LASHeader_GetCreationDOY ->LASHeader_SetCreationDOY
LASHeader_GetCreationYear->LASHeader_SetCreationYear
LASHeader_GetDataFormatId-> LASHeader_SetDataFormatId

LASHeader_SetScale ?????    Why not 3 setters like the 3 getters???
LASHeader_SetOffset?????   Why not 3 setters like the 3 getters???
LASHeader_SetMax?????   Why not 3 setters like the 3 getters???
LASHeader_SetMin?????   Why not 3 setters like the 3 getters???


In respect to macros:

Line ->	file ->	code
59	\include\liblas\capi\las_config.h 	#if defined(_MSC_VER) &&
!defined(LAS_DISABLE_DLL)
87	\include\liblas\capi\las_config.h 	#ifdef _MSC_VER
92	\include\liblas\capi\las_config.h 	#if defined (_MSC_VER) 
259	\include\liblas\detail\utility.hpp 		#ifdef _MSC_VER
398	\include\liblas\detail\utility.hpp 		#ifdef _MSC_VER
99	\src\las_c_api.cpp 			#ifdef _MSC_VER
1508	\src\las_c_api.cpp 			#ifdef _MSC_VER
161	\include\liblas\cstdint.hpp	 	# elif defined(_MSC_VER)  

In this last we have the most complicated solution because of the type
definition. Here the visual C type are not the same like mingw. Here mingw
use the sames types like GCC or cywin.

I think the best is take a look to GLIB or Qt types (steal a little of
code). They are really expert in multiplatform software. It´s almost the
same like liblas types but I think a little more complete in compilers,
architectures and operating systems.
http://library.gnome.org/devel/glib/stable/glib-Basic-Types.html
http://library.gnome.org/devel/glib/stable/glib-Byte-Order-Macros.html
http://library.gnome.org/devel/gio/unstable/GDataOutputStream.html
http://doc.trolltech.com/4.4/qdatastream.html

GIO+CAIRO+GDK+PANGO+GLIB+GTK+GTKGLEXT+GOBJECT+ATK+CLUTTER...=Qt

Behind GTK there real experts in computers:
http://foundation.gnome.org/


In the glib source code there a interesting module gtypes.h. They have there
many interesting stuffs (LGPL source code).
http://ftp.gnome.org/pub/gnome/sources/glib/2.16/

Qt source code is nice I think. They sell  privative software for the visual
studio c++ and GPL (free beer version) it´s for mingw:
http://trolltech.com/developer/downloads/qt/windows


The most stable types I think are:

GLIB-> Qt -> c#
gpointer-> void *-> IntPr
gchar-> char * -> string (isos or UTF-8)
gint8-> qint8 ->  sbyte
guint8-> quint8 ->  byte
gint16-> qint16 -> int16
guint16-> quint16 ->  uint16
gint32-> qint32 ->  int32
guint32-> quint32 ->  uint32
gint64-> qint64 ->   Int64
gfloat-> float -> float 
gdouble-> double -> double 



>If you are interested in including this work as part of libLAS, I can  
>provide you with a svn login to allow you to commit it to the source  
>repository.  It is a little late in our release process, but we can  
>hold up the release to include this, as it doesn't directly affect the  
>base library and I think others would find it very useful.

Yes. I think it´s the best. Thank you.

Modules:
- Reader
- Writer
- LASPoints
- LAS Header
- Exception class
- Iterator class
- c->C# API

TODO:
- I need manage the .NET exceptions.
- I need Implement the iterator interface.

Here my hello world in .NET:

using System;
using System.Text;
using MonoLAS; 
class Program 
{ 
    static void Main(string[] args)
    {
        LASReader lasreader = new LASReader(@"F:\sample.las");
        LASPoint laspoint;
        LASHeader lasheader = lasreader.GetHeader();
        LASWriter laswriter = new LASWriter(@"F:\sample_our.las", lasheader,
LASReadWriteMode.LASModeWrite);
        Console.WriteLine("Number of point in file= {0}",
lasheader.PointRecordsCount);
        while (lasreader.GetNextPoint())
        {
            laspoint = lasreader.GetPoint();
            //Console.WriteLine(laspoint.X + "," + laspoint.Y + "," +
laspoint.Z);
            //laspoint.X=laspoint.X+23.2;
            laswriter.WritePoint(laspoint); 
        }
        Console.WriteLine("END");
        Console.Read();     } 
} 
Regards.