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Hello,

I have a result file where tide inundate and water level increases and then decreases over a period of one month. Now, I want to find gradient of one time frame over the next time frame. How can I do it?

Second, is it possible to find count at each node over a time series that it get wet or not?

Regards
Preeti

Hello Preeti,

When a slf file is loaded into Blue Kenue a number of different objects are created in Blue Kenue's workspace. So, the precise answer will depend on which objects you are dealing with. To find out... double click on an object and its properties will appear. Then go to the metadata tab and you will the object type there...

I would also suggest that you have a look at the calculator as described in the Blue Kenue manual; you can subtract one frame from the previous frame over a series of frames (for some object types). Also, have a look at "Tools -> Map Object..." as another possibility. I am almost about to release a new "Tools -> Map File(s)..." functionality, but likely that will not help you...

It sounds like you have a multi-frame grid (perhaps a Rect 2D Scalar or a Rect 2D Cell) and you'd like to "Extract count above a threshold"... resulting in the construction of a new grid containing the counts. Is that more-or-less what you are asking for?

Kindly,
Alan

To be a little bit more precise... but not too much

When using the calculator you can create a new multi-frame object and set your threshold for wet (or not) so that each frame will only have ones or zeros at each node indicating wet (or not).

Then you can use "Tools -> Extract Surface -> Temporal Sums..." to count up the ones and zeros. In the end you will have your count at each node for wet or not.

In the future, this 2-step process may get simplified by a new function, such as "Tools -> Extract Surface -> Temporal Counts..."

Kindly,
Alan

Hi Alan,

Thank you for your answer Alan. I tried to extract time frames 1 to 1344. Then I try to merge this 2D-T3 scalar mesh with a single time frame having value at all the nodes zero. But I was unsuccessful in doing so.

Here What I am trying to do is, I try to make another mesh file with time frame 1 to 1344 as same as the original file and a time frame with zero node value at the last time frame. Subtracting the old data with this new mesh will give me my gradient file and then I can do the Temporal sum up using extract surface tool in blue kenue.

So, can you tell me the method to merge two mesh, one having multiple time frame and another having only time frame data.

One more thing, when I am using merge option given in Edit>>> T3 mesh>> merge, what it does is, it merges the mesh but it make all the time frame value zero.

Thank You for your effort.

Regards
Preeti

I may be getting confused; perhaps I'm not understanding gradient in the same way that you understand it; let me try to explain what I know...

Given: A multi-frame object (call it A) with frames 1 to 1344
Create: A new multi-frame object (call it C) that contains 1 less frame (in other words, frames 1 to 1343)
-- put in words... the ith frame (e.g. grid/mesh/etc.) is constructed by subtraction of the i+1st frame and ith frame in A

If I've got that right then let's march on to your next step...

Kindly,
Alan

Hi Alan,

Sorry for the late reply. Yes, you are absolutely correct.

Regards
Preeti