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Importing an ePlan LandXML

 
In this tutorial we show how you can import an existing ePlan LandXML file and we will investigate the relevant components.
 
We have a file DP1117750.xml  This file should have been installed within the "my documents\cds2. If it is not there you can download it from our ftp site ftp.foresoft.com, the user name is anonftp and the password is foresoft1
 
Lets first create a blank. From The  File - New  menu item create a new file and give it a name of landxml
 
To import the LandXML file select the menu item File -  Import LandXML. A dialog is shown; simply click on the "Read" button and the file is imported. Simple as that. See the screen shot below.
 
 
The ePlan XML data is converted to a format consistent with CDS.
 
 
 
Monuments (ie fixed points) are stored as points. They are either on the "reference" or the "proposed" layer. Also the "monument" is ticked. Depending on the type of data the appropriate point attributes are filled in. The attributes shown are those associated with a scim mark.
 
 
A typical point that makes up a point on an adjoining string looks like the following. It is on a layer "existing" and there are only two relevant attributes that are needed to be set.
 
 
We also have a number of different types of strings imported. Again depending on the function of the string. An adjoining lot would typically look like the following. It lives in the "adjoining" folder and has the extra attributes set as shown. The center value is the point number of a point signifying the center of the lot. It is optional.
 
 
A proposed lot. ie either a new or subdivided lot is as follows. You will notice it is in a folder called "proposed" and the state attribute is also set to "proposed".
 
 
 
 
 
Investigating the Data within the XML:
 
We suggest that you install on your computer an XML editor. We suggest XML Notepad, it is a free program form Microsoft. XML Notepad will flag gross errors in the data as well as giving us an idea of the data that we have just imported. The XML is simply another type of data and is an ascii form that we can easily investigate.
 
 
 
The major sections of the data are displayed in the left Tree View. I will briefly summarize below what they are:
 
 
LandXML
Contains information on how the data is defined, and bookkeeping data such as date and time. User can ignore.
Units
Specifies units of length, area etc. These will all be metric and user can ignore.
Coordinate System
Always set to AHD.
Application
Information on the software that created the file. Will be set automatically for user.
Feature Dictionary
A link to extra schema data from the NSW ePlan specification.
CgPoints
CgPoints are simply points that contain easting and northing values and optionally a height. They also contain further attributes such as a name (point number), state and pntSurvey.
Parcels
These are simply lots together with some extra attributes.
Survey
Contains data such as existing permanent marks. Also a record of the bearings and distances between setup points and new points.
 
Monuments
Basically existing fixed points and extra attributes.
Plan Features
These are extra strings such as walls, existing structures etc