writeGPS(secr)
writeGPS()所属R语言包：secr
Upload to GPS
上传到GPS
译者：生物统计家园网 机器人LoveR
描述----------Description----------
Upload a set of point locations as waypoints to a GPS unit connected by USB or via a serial port. Intended primarily for detector locations in a traps object. Uses the GPSBabel package which must have been installed. Coordinates are first inverse-projected to latitude and longitude using function project from rgdal.
航点到GPS单元通过USB连接或通过串口上传了一组点位置。主要用于探测器位置的陷阱对象。使用GPSBabel的软件包，必须已经安装了。坐标是先反投影的经度和纬度使用函数project的rgdal。
用法----------Usage----------
writeGPS(xy, o = "garmin", F = "usb:", proj = "+proj=nzmg")
参数----------Arguments----------
参数：xy
2-column matrix or dataframe of x-y coordinates
2列的矩阵或数据框的x-y坐标
参数：o
character output format (see GPSBabel documentation)
字符的输出格式（见GPSBabel的文件）
参数：F
character for destination (see Details)
字符目的地（见详情）
参数：proj
character string describing projection
字符串描述投影
Details
详细信息----------Details----------
This function is derived in part from readGPS in maptools.
此功能部分源于readGPS中maptools。
For users of Garmin GPS units, useful values of o are "garmin" for direct upload via USB or serial ports, and "gdb" for a file in Mapsource database format.
Garmin的GPS设备，有用的值的用户o是通过USB或串行端口直接上传“极限特工”，和“广发行”MAPSOURCE数据库格式的文件。
F may be "usb:" or "com4:" etc. for upload via USB or serial ports, or the name of a file to create.
F可能是“USB”或“COM4：”等通过USB或串行端口上传，或创建一个文件的名称。
The proj argument may be complex. For further information see the Examples, http://www.remotesensing.org/geotiff/proj_list/ and the help for related package rgdal. If proj is an empty string then coordinates are assumed already to be latitudes (column 1) and longitudes (column 2).
proj参数可以是复杂的。欲了解更多信息，请参阅的例子，http://www.remotesensing.org/geotiff/proj_list/和相关套件“rgdal的帮助。如果proj是一个空字符串，则坐标已经被认为是纬度（第1栏）和经度（第2列）。
Waypoint names are derived from the rownames of xy.
航点的名称来自行名的xy。
值----------Value----------
No value is returned. The effect is to upload waypoints to an attached GPS or file.
无返回值。其效果是上载的航点到一个附加的GPS或文件。
注意----------Note----------
GPSBabel is available free from http://www.gpsbabel.org/. Remember to add it to the Path. On Windows this means following something like Settings > Control panel > System > Advanced settings > Environment variables > (select Path) Edit and adding ";C:/Program Files (x86)/gpsbabel" to the end (without the quotes). Or ";C:/Program Files/gpsbabel" on 32-bit systems.
GPSBabel的是可以免费从http://www.gpsbabel.org/。记得将它添加到路径。在Windows中，这意味着类似设置>控制面板>系统>高级设置>环境变量>（选择路径），编辑和添加“，C :/ Program Files文件（X86）/ GPSBabel的”进行到底（不带引号）。 “C :/ Program Files文件/ GPSBabel的”32位系统。
参见----------See Also----------
make.systematic, readGPS, project
make.systematic，readGPS，project
实例----------Examples----------
## Example using shapefile "possumarea.shp" in[＃示例使用的shapefile的“possumarea.shp”]
## "extdata" folder. As 'cluster' is not specified,[＃“扩展数据”文件夹。作为“聚类”没有被指定，]
## the grid comprises single multi-catch detectors.[＃电网由单一的多副渔获物探测器。]
## Not run: [＃不运行：]
require(maptools)
setwd(system.file("extdata", package = "secr"))
possumarea <- readShapePoly("possumarea")
possumgrid <- make.systematic(spacing = 100, region =
possumarea, plt = TRUE)
## May upload directly to GPS...[＃也可以直接上传到GPS ...]
writeGPS(possumgrid, proj = "+proj=nzmg")
## ...or save as Mapsource file[＃...或保存为MAPSOURCE文件]
writeGPS(possumgrid, o = "gdb", F = "tempgrid.gdb",
proj = "+proj=nzmg")
## If `region' had been specified in another projection[＃如果区域已经指定了另一个投影]
## we would need to specify this as in Proj.4. Here is[＃我们需要指定它，因为在PROJ.4。下面是]
## an example for New Zealand Transverse Mercator with[＃一个例子新西兰横轴墨卡托投影]
## datum NZGD2000 (EPSG:2193)[数据NZGD2000（EPSG：2193）]
NZTM <- paste("+proj=tmerc +lat_0=0 +lon_0=173 +k=0.9996",
"+x_0=1600000 +y_0=10000000 +ellps=GRS80",
" +towgs84=0,0,0,0,0,0,0 +units=m +no_defs")
writeGPS(possumgridNZTM, o = "gdb", F = "tempNZTM.txt",
proj = NZTM)
## Or to upload coordinates from UTM Zone 18 in eastern[＃或上传坐标UTM 18区东部]
## Maryland, USA...[＃美国马里兰州，...]
writeGPS(MarylandUTMgrid, proj =
"+proj=utm +zone=18 +ellps=WGS84")
## End(Not run)[＃（不执行）]
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
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发表于 2012-9-30 00:07:55
