![READ VECTOR DATA
Example
Point Polyline Polygon
Geometry 'Polygon'
BoundingBox [2x2 double]
Lon [1x5785 double]
Lat [1x5785 double]
AREA 54.447
PERIMETER 68.489
BOU2_4M_ 2
BOU2_4M_ID 23
ADCODE93 230000
ADCODE99 230000
NAME '黑龙江省'
Geometry 'Point'
Lon 116.3809
Lat 39.9236
AREA 0
PERIMETER 0
RES1_4M_ 1
RES1_4M_ID 61
GBCODE 31010
NAME '北京'
ADCODE93 110100
ADCODE99 110100
ADCLASS 1
PINYIN 'Beijing'
Geometry 'Line'
BoundingBox [2x2 double]
Lon [1x11 double]
Lat [1x11 double]
FNODE_ 18
TNODE_ 18
LPOLY_ 6
RPOLY_ 4
LENGTH 0.075
HYD1_4M_ 1
HYD1_4M_ID 1359
GBCODE 23010
NAME '克鲁伦河'
LEVEL_RIVE 3
EVEL_LAKE 1](https://image.slidesharecdn.com/p2013091901-130919035234-phpapp01/85/How-Matlab-Helps-7-320.jpg)
![DISPLAY VECTOR DATA
worldmap [construct map axes]
mapshow [without projection]
geoshow [with projection]
scaleruler
northarrow](https://image.slidesharecdn.com/p2013091901-130919035234-phpapp01/85/How-Matlab-Helps-8-320.jpg)
![READ RASTER DATA
[A, R] = geotiffread(filename)
[Z,R] = arcgridread(filename)](https://image.slidesharecdn.com/p2013091901-130919035234-phpapp01/85/How-Matlab-Helps-12-320.jpg)
How Matlab Helps
- 1. HOW MATLAB HELPS Zhang Xiaohu
- 2. WHY MATLAB Fast prototyping Toolbox IDE Warning: Fortran, LAPACK Efficiency -- Vectorization Alternative Option Octave http://www.gnu.org/software/octave/ M_Map
- 3. DATA FORMATS SUPPORTED Vector Data ESRI Shapfile KML … Raster Data GeoTIFF Arc ASCII Grid … Relevant Data Image file formats NetCDF, HDF*, and Multband files (BIP,BIL,BSQ) … WMS
- 4. OUTLINE Matlab and Geospatial Data Vector Data Manipulation Raster Data Manipulation Distribution Figures 1-D Distribution 2-D Distribution
- 5. VECTOR DATA MANIPULATION Read Structures Display Write Point, Polyline, Polygon
- 6. READ VECTOR DATA S = shaperead(filename, Name,Value, ...) Field Name Data Type Description Comments Geometry String One of the following shape types: 'Point', 'MultiPoint', 'Line', or 'Polygon'. For a 'PolyLine', the value of the Geometry field is simply 'Line'. BoundingBox 2-by-2 numerical array Specifies the minimum and maximum feature coordinate values in each dimension in the following form: Omitted for shape type 'Point'. X, Y, Lon, or Lat 1-by-N array of classdouble Coordinate vector. Attribute String or scalar number Attribute name, type, and value. Optional. There are usually multiple attributes.
- 7. READ VECTOR DATA Example Point Polyline Polygon Geometry 'Polygon' BoundingBox [2x2 double] Lon [1x5785 double] Lat [1x5785 double] AREA 54.447 PERIMETER 68.489 BOU2_4M_ 2 BOU2_4M_ID 23 ADCODE93 230000 ADCODE99 230000 NAME '黑龙江省' Geometry 'Point' Lon 116.3809 Lat 39.9236 AREA 0 PERIMETER 0 RES1_4M_ 1 RES1_4M_ID 61 GBCODE 31010 NAME '北京' ADCODE93 110100 ADCODE99 110100 ADCLASS 1 PINYIN 'Beijing' Geometry 'Line' BoundingBox [2x2 double] Lon [1x11 double] Lat [1x11 double] FNODE_ 18 TNODE_ 18 LPOLY_ 6 RPOLY_ 4 LENGTH 0.075 HYD1_4M_ 1 HYD1_4M_ID 1359 GBCODE 23010 NAME '克鲁伦河' LEVEL_RIVE 3 EVEL_LAKE 1
- 8. DISPLAY VECTOR DATA worldmap [construct map axes] mapshow [without projection] geoshow [with projection] scaleruler northarrow
- 9. WRITE VECTOR DATA Write Point data
- 10. WRITE VECTOR DATA Write Line data
- 11. WRITE VECTOR DATA Write Polygon data
- 12. READ RASTER DATA [A, R] = geotiffread(filename) [Z,R] = arcgridread(filename)
- 13. WRITE RASTER DATA geotiffwrite(filename,A,R) Image Processing Toolbox Computer Vision System Toolbox
- 14. OUTLINE Matlab and Geospatial Data Vector Data Manipulation Raster Data Manipulation Distribution Figures 1-D Distribution 2-D Distribution
- 17. THANKS