Graphic Technologies, Inc. (GTI) GTViewer Reader/Writer
Licensing optionsfor this format begin with FME Professional Edition.
Note:For more information on this format, please visit the Graphic Technologies, Inc. website atwww.gti-us.com.
The GTI GTViewer Reader and Writer modules provide FME with access to Graphic Technologies, Inc.’s (GTI’s) GTViewer Format.
The GTViewer format is used by several of GTI’s products including GTViewer, Pocket GTViewer, GTVx, GTWeb, GTRead, GTCreate, GTViewer .NET Control, Pocket GTViewer .NET Control, GT/Field, and GTData.
Overview
GTViewer格式存储几何和素质bute information for spatially organized features.
The GTViewer format is packaged in two different forms: Unextracted and Extracted. The Unextracted format is the main format used by GTViewer and consists of a.GTM
file (GTViewer Manager File) plus a collection of files that are referenced by the.GTM
file including graphics files, index files, query files, tabular data files, color files, fonts, linestyles, etc.
提取的格式以a的形式.GTX
file is a single file derived from a.GTM
file and its dependencies. The Extracted file format is used by Pocket GTViewer, but is also a valid format for GTViewer, GTVx, GTWeb, and GTRead, and the .NET Controls. A.GTX
Extract file can contain an entire dataset or only a specific area (defined by a polygon).
File Extension |
Contents |
Module Support |
---|---|---|
.GTM |
Unextracted Data File |
Write |
.GTX |
Extracted Data File |
Read (session graphics only) |
.GTG |
Graphic File/Export file |
Read and Write (as part of .GTM output). |
The Unextracted Data managed by a .GTM file consists of a variety of file types. A summary of these file types is shown below:
File Type |
Contents |
---|---|
.GTG Graphics File (Binary File) |
|
.GTN Spatial Index File (Binary File) |
|
.DFN Font Definition file (Binary File) |
|
Color.txt Color Definition File (ASCII File) |
|
Filter#.FLT 显示过滤筛选定义文件(ASCII文件) |
|
Range.txt Range Definition File (ASCII File) |
|
Data.txt Tabular Data File (ASCII File) |
|
Data.tab Tabular Data Definition File (ASCII File) |
|
data.idx. Tabular Data Index file (Binary File) |
|
The Extracted Data in a .GTX file is a composite of the information in an Unextracted Data’s .GTM file and all of the files it references, producing an equivalent data representation in a single file for the entire dataset or a specific region (as defined by a polygon) in a dataset.