Get Elevation Value Of Given Latitude And Longitude From A DEM File In 11x11 Matrix?

Apr 2, 2009

I need to display or get the elevation value of a given latitude and longitude from the DEM file in 11x11 matrix array.Actually I have a DEM file and corresponding HDR file of it.And, the DEM file is 6000x4800 Matrix with 57600000 data's.Now, I worked with some codes where I can able to get the elevation of a Given latitude and longitude.But, When I Zoom IN or OUT,the Latitude and Longitude values changes so,when I pass the changed latitude and Longitude value,I could not able to get the elevation value.The reason is,

In the 6000x4800 matrix the Resolution of the X and Y is large,so when we Zoom IN or OUT the resolution changes and could not display the elevation value.But, where as if we get the elevation values in 11x11 matrix array,since it has 121 data's only, the resolution value will be small and even when we Zoom IN or OUT and pass the changed Latitude and Longitude, we could able to get the elevation.[code]....

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Display The Elevation Value In Resolution Of 11x11 Matrix From A DEM File?

Apr 8, 2009

My work is, I have a DEM file and header file of it.Now, I want to display the elevation value from the DEM file of the given Longitude and Latitude.And, I worked on it before,Where I could get the elevation value with the resolution matrix of 6000x4800 and I can able to read the elevation value.But, now I want to modify in such a way that I should read the elevation values from the DEM file with the resolution matrix of 11x11.So, kindly guide me in getting the elevation value with resolution of 11x11 matrix.The code I have used before to display the elevation value with resolution of 6000x4800 are:

[Code]...

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Generate The Latitude And Longitude Values From The HDR File?

Mar 26, 2009

I have a HDR file and DEM file,I want to generate the Latitude and Longitude values from the header file.Where that values are is used to list the elevation values from the DEM file.The file contains the data's like:

BYTEORDER M
LAYOUT BIL
NROWS 6000
NCOLS 4800

[code]....

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How To Generate The Latitude And Longitude Values From The HDR File

Apr 19, 2012

I have a HDR file and DEM file,I want to generate the Latitude and Longitude values from the header file.Where that values are is used to list the elevation values from the DEM file.The file contains the data's like:

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Mar 23, 2009

I have a DEM file(Digital Elevattion Model File)  and I am trying to open the file,where we have Latitude and Longitude values inside the DEM file.And, Now I have opened the file using Filestream and Read the file using BinaryReader.But, I am having a trobule in getting the values of Latitude and Longitude.I am getting Byte values randomly as 1,202,31,271 etc.But, we dont have latitude and longitude values more than 180,and also I am not getting 16 bit UInt values.For example, the values should be like Latitude  20.00416666666667 and Longitude 39.99583333333333.So,read the correct Byte values of the DEM file.The code I have used till now is:

Dim fs As FileStream = New FileStream("C:UsersadminDesktopHeader and DEM fileE020N40.DEM", FileMode.Open, FileAccess.Read)
Dim rd As New BinaryReader(fs)
Dim convertDB As UInt16
For i = 0 To rd.BaseStream.Length

[code]....

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[Code]...

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For Example:

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I have a piece of code:

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Nov 27, 2011

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For example I would use the following numbers for the latitude and longitude:
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Long = -73.96140740

Additional Information: I'm developing an Android app using Basic4Android. Basic4Android uses a VB or VB.Net syntax with SQLite as the database. Part of this app will have route planning. I want to use this number as the first column in an SQLite table and the other columns will be for the address. If I do a query within the app that sorts the rows in numerical ascending order, I will be able to figure out which postal address are closest to each other so it will take less time for me to go from house to house.

For example, if the numbers were:
194580, 199300, 178221

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How can I read Longitude and Lagitude from photo taken on Windows phone 7 Samsung?

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May 30, 2011

Create a function named DecimalDegrees to refactor the code that converts a latitude or longitude into a value in decimal degrees. (This function will be used inside the functions ValueOf and Distance.)
Task 2a: Write the code for the function DecimalDegrees with an input parameter for DegreeString as type string, and returns the value as type Double.

Here is my code for the function part
Private Function DecimalDegrees(ByVal DegreeString As String, ByVal degrees As Double, ByVal minutes As Double,
ByVal seconds As Double, ByVal ID As Integer) As Double

I am having difficulties with the 2nd part which is I believe to take the code for the calc1 and calc2 buttons and somehow get it to convert to decimal degrees by the function I have created. The buttons would then be removed as the code would automatically take the latitude and longitude and convert the degrees, minutes and seconds into a decimal.

Here is the code for the current buttons:
Dim StartPtr, StopPtr As Integer
'To Replace Calculator 1 Button
'Convert degrees before passing argument - Latitude
StartPtr = 0
[Code] .....

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Jul 31, 2011

I am writing a small aspx web application that takes in forum information after validation and then opens a database connection and populates the proper columns with data.note:  The database is a .sdf file created in web matrix My issue is that even with: Import Namespace="System.Data.OleDb" on the page I am getting:
Type 'OledbConnetion' is not defined. I am extremly new to VB, I am coming from java and honestly I do not have all year to read vb code and take classes and read books. I need to finish this app for a client so I am kind of rushed.

[Code]...

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Jul 14, 2009

Has anyone managed to get administration rights through the UAC without restarting the application or embedding a manifest file?

I'd like to write to some files that only administrators can modify, without relying to another elevated application. Is it possible to impersonate an administrator previously calling with some native API the UAC prompt?

I guess this is not possible and I'll have to use an external tool with elevated rights, but I'm asking just in case.

EDIT: I know there are some other similar questions around, but since they do not cover the topic of impersonation (as fas as I've seen), nor some possible native call to the UAC prompt I decided to give a new thread a go...

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I have created a 2008 Visual Basic.NET application I'm using on Windows 7 that requires elevation. In myapplication I used the UAC manifest in VS 2008 to makere elevation. that works fine with a regular 2008 VB.NET form and will remember the form postion.On my application (really just a form) that requires elevation it will not save the position and always starts in the upper left of the screenDoes anyone know a way around this on an application created that requires elevation

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Jan 31, 2011

I want to be able to pass through multiple Latitude and Longitudes and perform calculations rather then create a different function for each

I have one static Lat/Long and then need to compare that to 7 different Lat/Long

HTML
Public Function DistanceCalc(ByVal Lat1, ByVal Lon1, ByVal Lat2, ByVal Lon2, ByVal UnitFlag)
Lat1 = 34.172801

[Code].....

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[Code]...

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Module Procedimientos
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Declaring my variables:

Public line As Integer
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[code].....

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the iterations should look like

[Code]...

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(1) Disposals removed for brevity.

(2) I test the code with a 200 x 200 rectangle.

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[Code]...

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