Difference between revisions of "Add Layer"

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(→‎Valid projection)
(→‎File:shapfile_icon_70.png Shapefile (polygon/point))
 
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The <b>Add</b> button opens the Upload data screen (Fig. 1). You may upload a [[Add Layer#Table_.28point.29|<b>Table (point)</b>]], [[Add_Layer#Coverage_.28raster.29|<b>Coverage (raster)</b>]] or [[Add Layer#Shapefile_.28polygon.2Fpoint.29|<b>Shapefile (polygon/point)</b>]] file. Click <b>Choose File</b> to browse to your file. You must then select a <b>Category</b> (used for classification in the layer list) and may add a <b>Description</b> of your dataset. Click <b>Upload</b> when you are finished.
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[[File:new_add_layer_60.png|alt=Data Upload|Data Upload|frame<b>|Figure 1:</b> Upload data screen ]]
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<br clear=all>
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==[[File:table_icon_70.png]] Table (point)==
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Make sure that your table meets the following standards:
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<b>Format</b>: Only Excel files (*.xlsx) and semicolon-delimited files (*.csv) are valid. The file name may not contain any blank spaces.
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<b>Headers</b>: The first line of the table contains the names of each data column. These names must not contain any punctuation or special characters, such as '?', '/' or 'ü' or any blank spaces and may not begin with a number. Column names that are reserved and <b>may not</b> be used are: 'ID', 'long', 'time', 'as'.
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<b>Required columns</b>: Latitude and longitude columns are required.
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* Acceptable latitude column names: Latitude, Lat, Y, North, Northing 
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* Acceptable longitude column names: Longitude, Lon,  X,  East, Easting
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Make sure that the first line of data, i.e. the second line of your table, contains numerical values in every column and has no empty cells. Otherwise, the entire column with the blank cell will be treated as a string and cannot be used as numerical data. Likewise, if your numerical data contain a combination of float (decimal) and integer (whole number) data, make sure that a decimal value occupies the first line of data.
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'''Example Table''' (VAR1 and VAR2 are arbitrary variables)
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{| class="wikitable"
 
{| class="wikitable"
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! align="center" |Index
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! align="left" width="85pt" |Lat
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! align="left" width="85pt"|Lon
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! align="center" |VAR1
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! align="center" |VAR2
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|-
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| 1||28.4||87.6||1||2
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|-
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| 2||27.9||87.5||2||0
 
|-
 
|-
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|[[image:DataUpload.JPG|left|frame|Data upload window]]
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|}
 
|}
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==[[File:coverage_icon_70.png]] Coverage (raster)==
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<b>Format</b>: *.tif
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<b>Bands</b>: Only single-band rasters are supported.
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<b>Size</b>: max. 150 MB
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<b>Projection</b>: The only supported projection is [[Add Layer#Valid projection|<b>WGS84</b>]]
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==[[File:shapfile_icon_70.png]] Shapefile (polygon/point)==
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<b>Format:</b> Only a compressed .zip file with all necessary files is valid (Fig. 2).
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<b>Contents:</b> The .zip file must contain a *.dbf, *.prj, *.shp, *.shx file each and can additionally contain a *.sbx and *.sbn file. There may not be any sub-folders within the .zip file.
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<b>Projection:</b> The only supported projection is [[Add Layer#Valid projection|<b>WGS84</b>]].
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[[File:ShapeFileContents_fixed.JPG|left|alt=Contents of zip file|Contents of zip file|<b>Figure 2:</b> Contents of zip file ]]
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<br clear=all>
  
 
==Valid projection==
 
==Valid projection==
 
   
 
   
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'''Geographic Coordinate System:''' GCS_WGS_1984   
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<b>Geographic coordinate system</b>: GCS_WGS_1984   
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'''Datum:''' D_WGS_1984   
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'''Prime Meridian:''' Greenwich 
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<b>Datum:</b> D_WGS_1984   
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'''Angular Unit:''' Degree
 
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'''EPSG:4326'''
 
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  For more information check [http://spatialreference.org/ref/epsg/wgs-84/ WGS84]
 
  
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==Table==
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<b>Prime Meridian:</b> Greenwich  
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  '''Format:''' Only comma delimited file ('*.csv') is valid.
 
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  '''Headers:''' the first line of file considered as headers
 
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  '''Coordinate Columns:''' Latitude and longitude  columns are required.
 
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    '''latitude column name:''' Latitude, Lat, Y, North and Northing are valid names for lattitude. 
 
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    '''Longitude column name:''' Longitude, Long,  X,  East,  Easting are valid names for longitude.
 
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  '''NOTE:'''If the second line in the file contains null value (empty string) corresponding column considered to be of type string.
 
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Example
 
  
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:Index;Country;Location;Latitude ;Longitude;Well_Depth;Arsenic
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<b>Angular Unit:</b> Degree
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:S98_00701;Bangladesh;;22.873;90.784;10.7;13
 
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:S98_00718;Bangladesh;;23.019;90.879;12.2;256
 
  
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<b>EPSG:</b> 4326
  
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==Coverage==
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For more information, see [http://spatialreference.org/ref/epsg/wgs-84/ WGS84]
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  '''Format:''' Only one band *.tif format is valid. If coverage has more than one band only the first band is taken into account.
 
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==Shapefile==
 
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  '''Format:''' Only compressed zip file is valid.
 
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  '''Contents:''' The zip file must contain *.dpf, *.prj, *.sbn, *.shp, *.shx, *.sbx files.
 
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Example:
 
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  {| class="wikitable"
 
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  |-
 
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    |[[image:ShapeFileContents.JPG|left|frame|Contents of zip file]]
 
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    |}
 

Latest revision as of 14:46, 8 August 2018

The Add button opens the Upload data screen (Fig. 1). You may upload a Table (point), Coverage (raster) or Shapefile (polygon/point) file. Click Choose File to browse to your file. You must then select a Category (used for classification in the layer list) and may add a Description of your dataset. Click Upload when you are finished.

Data Upload


Table icon 70.png Table (point)

Make sure that your table meets the following standards:

Format: Only Excel files (*.xlsx) and semicolon-delimited files (*.csv) are valid. The file name may not contain any blank spaces.

Headers: The first line of the table contains the names of each data column. These names must not contain any punctuation or special characters, such as '?', '/' or 'ü' or any blank spaces and may not begin with a number. Column names that are reserved and may not be used are: 'ID', 'long', 'time', 'as'.

Required columns: Latitude and longitude columns are required.

  • Acceptable latitude column names: Latitude, Lat, Y, North, Northing
  • Acceptable longitude column names: Longitude, Lon, X, East, Easting

Make sure that the first line of data, i.e. the second line of your table, contains numerical values in every column and has no empty cells. Otherwise, the entire column with the blank cell will be treated as a string and cannot be used as numerical data. Likewise, if your numerical data contain a combination of float (decimal) and integer (whole number) data, make sure that a decimal value occupies the first line of data.

Example Table (VAR1 and VAR2 are arbitrary variables)

Index Lat Lon VAR1 VAR2
1 28.4 87.6 1 2
2 27.9 87.5 2 0

Coverage icon 70.png Coverage (raster)

Format: *.tif

Bands: Only single-band rasters are supported.

Size: max. 150 MB

Projection: The only supported projection is WGS84

Shapfile icon 70.png Shapefile (polygon/point)

Format: Only a compressed .zip file with all necessary files is valid (Fig. 2).

Contents: The .zip file must contain a *.dbf, *.prj, *.shp, *.shx file each and can additionally contain a *.sbx and *.sbn file. There may not be any sub-folders within the .zip file.

Projection: The only supported projection is WGS84.

Contents of zip file


Valid projection

Geographic coordinate system: GCS_WGS_1984

Datum: D_WGS_1984

Prime Meridian: Greenwich

Angular Unit: Degree

EPSG: 4326

For more information, see WGS84

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