x,y,z representation
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From: Chris on 7 Jun 2010 11:40 I have a dataset of 123 points, it is composed of Latitude, Longitude and mean sediment diameter. What I am trying to do is to create a 2-D plot of this data using a color gradient to represent the mean sediment diameter. What would be the best way to go about doing this? Thanks
From: Walter Roberson on 7 Jun 2010 11:49 Chris wrote: > I have a dataset of 123 points, it is composed of Latitude, Longitude > and mean sediment diameter. What I am trying to do is to create a 2-D > plot of this data using a color gradient to represent the mean sediment > diameter. What would be the best way to go about doing this? I suggest pcolor() or possibly contour()
From: Frédéric Bergeron on 7 Jun 2010 11:53 "Chris " <chris.veinot(a)hotmail.com> wrote in message <huj3t5$bt5$1(a)fred.mathworks.com>... > I have a dataset of 123 points, it is composed of Latitude, Longitude and mean sediment diameter. What I am trying to do is to create a 2-D plot of this data using a color gradient to represent the mean sediment diameter. What would be the best way to go about doing this? > > Thanks I would try SURF(X,Y,Z,C) with an array of Z of 123 zeros. The array C is for the color gradient. See help surf for more details. Surf is originally made for 3D graphs, but I don't know of a similar 2D function, so by defining the array Z as an array of zeros it would probably works.
From: Chris on 7 Jun 2010 12:43 This seems to be what I'm going for! However I believe I am setting up the Z array wrong, I am getting an error "Z must be a matrix, not a scalar or vector" "Frédéric Bergeron" <frederic.bergeron(a)logiag.com> wrote in message <huj4l2$2rd$1(a)fred.mathworks.com>... > "Chris " <chris.veinot(a)hotmail.com> wrote in message <huj3t5$bt5$1(a)fred.mathworks.com>... > > I have a dataset of 123 points, it is composed of Latitude, Longitude and mean sediment diameter. What I am trying to do is to create a 2-D plot of this data using a color gradient to represent the mean sediment diameter. What would be the best way to go about doing this? > > > > Thanks > > I would try SURF(X,Y,Z,C) with an array of Z of 123 zeros. The array C is for the color gradient. See help surf for more details. > Surf is originally made for 3D graphs, but I don't know of a similar 2D function, so by defining the array Z as an array of zeros it would probably works.
From: someone on 7 Jun 2010 13:24
"Chris " <chris.veinot(a)hotmail.com> wrote in message <huj7ip$mmd$1(a)fred.mathworks.com>... > This seems to be what I'm going for! However I believe I am setting up the Z array wrong, I am getting an error "Z must be a matrix, not a scalar or vector" OK, so how did you "set it up"? What command(s) did you use? > > "Frédéric Bergeron" <frederic.bergeron(a)logiag.com> wrote in message <huj4l2$2rd$1(a)fred.mathworks.com>... > > "Chris " <chris.veinot(a)hotmail.com> wrote in message <huj3t5$bt5$1(a)fred.mathworks.com>... > > > I have a dataset of 123 points, it is composed of Latitude, Longitude and mean sediment diameter. What I am trying to do is to create a 2-D plot of this data using a color gradient to represent the mean sediment diameter. What would be the best way to go about doing this? > > > > > > Thanks > > > > I would try SURF(X,Y,Z,C) with an array of Z of 123 zeros. The array C is for the color gradient. See help surf for more details. > > Surf is originally made for 3D graphs, but I don't know of a similar 2D function, so by defining the array Z as an array of zeros it would probably works. |