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Showing posts with the label geospatial. vector

Online Raster and Vector Basemap Comparison in QGIS and Which Is Better for A Mapping Project

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There are two types of basemaps. Raster tile basemap and vector tile basemap. The raster tile basemap is pre-rendered, stored on the server, and displayed unchanged by the client. The World Imagery basemap is a good example of a raster tile basemap and an example of a basemap that cannot be displayed as a vector tile basemap. The Vector Tile Basemap references a set of web-accessible vector tile data (points, lines, and polygons) and the appropriate style for drawing those tiles. Vector tile basemaps are used for non-image content. Vector tile layers can be adapted to the resolution of your display device and can be redesigned for multiple uses. Vector tile basemap technology now is supported in latest GIS Software such as ArcGIS Pro and QGIS. There are few vector tile format that have been developed by various company or agency. For example, Mapbox have developed MBtiles and MVT as Vector Tile format, ESRI and Google use Protocol Buffer Format (PBF) for its vector t...

CAD or Shapefile Data Georeferencing / Spatial Adjustment in ArcGIS Desktop

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How to perform vector geospatial data georeferencing in ArcGIS Desktop. This georeferencing procedures can be applied to CAD Data like DWG or DXF or any other vector data format, so the result can be used for GIS analysis and mapping. 

Modifying Vector Tile Style (Basemap series Part 4)

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Please read my previous blog post about how to author vector tile. Okay now I will continue about how to modify vector tile styling to suit custom needs. we start from the vector tiles layer hosted on ArcGIS online. what you must do first is copy the style using clik on layer name, and choose copy, because I use indonesian languange, it is called SALIN. then followed by Save layer from the copied layer. In order to edit the style of the copied layer, you can use two built in application from ArcGIS online, which is 1. Simple Editor  . This is code based, so you can freely modify as long as you understand the syntax. The syntax is similar with CSS for your information. 2. Vector Basemap Style Editor . This tool is more GUI based and perform better in many cases. Give the two apps permission to works on your arcGIS online account Using these two applications, you can modifying the style of the tiled layer like changing colors, thicken the outline, ma...

Batch Convert MXDs To Previous Version ( The Power Of Phyton Part 3)

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A friend just asked me to help her dealing with some ArcGIS 10.2 MXDs while she currently only has access to ArcGIS 10.1, and yes her ArcMap wouldnt open the MXDs. Version differences sure could be real pain in the ass if you are working in multi environment map making. So make sure you are using newest version available in the market (no need to waiting for the crack because "the good guy" ESRI is so kind to give us, literally, 2 months trial, but, actually it is a lifetime trial if you are evil enough to figure out the way). The conversion method is pretty easy and straightforward (even elementary student can do it). But, it will be at different level if you got a bunch of MXDs stored in a bunch of folders, and you need to convert it all. How will you do it? doing it one by one is a disaster man.You will eventually losing precious time while you could use it to go date with some girls out there.  Fortunately, we got phyton which proven to be life saver at difficult ...

Multiuser Geodatabase Management, Theoretical Practices, ( only for Advanced ArcGIS user, :p )

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Manajemen multiuser geodatabase dalam sebuah sistem pekerjaan yang melibatkan data geospasial di lebih dari satu pengguna idealnya mengikuti workflow seperti gambar di bawah. Sumber gambar : ESRI 1. Create  Pembuatan geodabatase dalam lingkungan multiuser idealnya menggunakan SDE Geodatabase (bukan file atau personal geodatabase). Hal ini dikarenakan SDE geodatabase sudah mendukung akses dari lebih dari satu pengguna. SDE geodatabase tidak menggunakan format penyimpanan seperti file atau personal geodatabase tapi menggunakan RDBMS (relational database management system). Adanya RDBMS memungkinkan untuk dilakukan manajemen akses dan pengelolaan data, seperti misalnya siapa saja yang bisa mengakses data, bagaimana strategi pengamanan basis data, bagaimana metode input dan updating data, dll. DBMS yang sudah mendukung geodatabase antara lain Oracle, Microsoft SQL Server, Postgre SQL, dan ALTIBASE.  Hal penting yang harus dipertimbangkan dalam tahap ini antar...

Extracting Original Data from ArcGIS Server REST Dynamic Map Services Using Quantum GIS

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Para pengguna ArcGIS Server tentu sudah sangat paham dengan yang namanya REST Map Services. REST (representation state transfer) Map services merupakan format distribusi data spasial via Web yang digunakan ESRI untuk mendukung diseminasi data spasial via web. Map services menggunakan REST protocol dapat digenerate dan dihosting menggunakan perangkat lunak ArcGIS server. Bentuk umum REST mirip dengan OGC WMS, dimana client akan me-request data spasial kepada server yang akan di-return oleh server dalam bentuk gambar peta dan beberapa atribut yang diperlukan. Layanan REST dapat diakses dengan memasukkan URL tertentu disertai serangkaian tag query untuk memanggil data. Katalog REST URL dapat diakses dari REST Service directory. Contoh REST Service directory yang dapat diakses publik milik Kementerian/Lembaga/Instansi antara lain : 1. Kementerian PU 2. BIG 3. INA-SDI 4. BNPB 5. Kementerian Pertanian 6. Kementerian Kehutanan 7. Kementerian Perhubungan,, 8. dan masih banyak lagi ins...

Free/Open Vector Geospatial Data Provider (Official/Frequently Updated)

Links checked as of 5 July 2014 1. Global Administrative Data By country (Indonesia Included) GADM is a spatial database of the location of the world's administrative areas (or adminstrative boundaries) for use in  GIS  and similar software. Administrative areas in this database are countries and lower level subdivisions such as provinces, departments, bibhag, bundeslander, daerah istimewa, fivondronana, krong, landsvæðun, opÅ¡tina, sous-préfectures, counties, and thana. GADM describes where these administrative areas are (the "spatial features"), and for each area it provides some attributes, such as the name and variant names.   The data are available as shapefile,  ESRI  geodatabase, RData, and  Google Earth  kmz format.  http://www.gadm.org/ 2. UTM Zone Map http://earth-info.nga.mil/GandG/coordsys/gislayers/gislayers.html 3.  Global Self-consistent, Hierarchical, High-resolution Geography Database (shoreline,administrative,...