For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dehapama/openSUSE_Tumbleweed/home:dehapama.repo
zypper refresh
zypper install transfig
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dehapama/openSUSE_Slowroll/home:dehapama.repo
zypper refresh
zypper install transfig
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dehapama/15.6/home:dehapama.repo
zypper refresh
zypper install transfig