Skip to content

Fix reshape error in render_blobs when cmaprange min equals max #68

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
Copilot wants to merge 2 commits into
base: master
Choose a base branch
from
Draft

Fix reshape error in render_blobs when cmaprange min equals max #68

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a14778e
Initial plan
Copilot Mar 9, 2026
5aaa013
Fix reshape error in render_blobs when cmaprange has equal min/max va…
Copilot Mar 9, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 3 additions & 2 deletions CanlabCore/fmridisplay_helper_functions/render_blobs.m
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -674,6 +674,7 @@
%w = repmat(Z, [1 1 3]);

w = map_function(Z,cmaprange(1),cmaprange(2),1,size(cm,1));
w(isnan(w)) = 1; % replace NaN indices (from NaN Z values) with 1 to avoid indexing errors
slicecdat = reshape(cm(round(w),:),[size(Z),3]);
else
w = repmat(Z, [1 1 3]);
Expand Down Expand Up @@ -950,8 +951,8 @@
function val = map_function(c,x1,x2,y1,y2)
if x2 == x1
% this occurs when we have a single value. We arbitrarily set it to
% the middle value
range_val = (y2-y1)/2;
% the middle value. Use ones(size(c)) to preserve the shape of c.
range_val = (y2-y1)/2 * ones(size(c));
else
% softmax here keeps negative values from extending below the colormap
% range, which would otherwise make those values gray, since the lowest
Expand Down